Thursday, August 25, 2016

Fitting Data in Excel and OpenOffice Calc

I've stopped installing Microsoft Office onto my home computers. Instead, I installed OpenOffice on my latest two computers. It does everything I need it to do. Or so I thought.

One day I decided I wanted OpenOffice Calc to perform a polynomial fit to some measurements I'd been taking. So I did what I always do in Excel: create a Scatterplot of the data, add a Trendline, choose Polynomial and its order, and then click the checkboxes to display both the equation and the R2 value on the chart. Except there was no polynomial Trendline!

According to the OO help forums, there really is no built-in polynomial trendline in Calc. But there is an extension called CorelPolyGUI that does the trick.

Unfortunately, I wasn't too thrilled with this extension. My measurements were accumulating every week. With Excel, I'd be able to add new data and watch the scatterplot update the polynomial. But CorelPolyGUI doesn't work that way. The result from CorelPolyGUI essentially is a snapshot that's disconnected from the input data. To get it to update, I found that I had to delete the result and then re-invoke the extension with new data ranges. And that was a big problem – I wasn't sure over what extent of my data I wanted to fit. Perhaps I could get a better fit if I omitted some measurements. So I needed to alter the input range a few times and compare the results.

There is another method, that if you're clever, you can program yourself. It's based on the following set of equations (for a second-degree poly fit):



To get the values of A, B and C, you simply matrix multiply the vector on the left side of the last equation with the inverted 3 x 3 matrix on the right hand side. Once you program this into your spreadsheet, you can alter the data and instantly get the polynomial function to update.

But it turns out there's an even easier way. I found it accidentally in the results from my search for how to fit a polynomial in OpenOffice. It involves using LINEST to operate on array data. The web page^3 describes using LINEST in Excel to perform non-linear curve fitting. It turns out that the OpenOffice Calc LINEST function works the same way, albeit with slightly different syntax. And the syntax is different because of how you define an array in Calc, separating the elements with semi-colons instead of commas.

In retrospect, I see now the same solution in the OO help forums. The user Villeroy attached a spreadsheet with an example that uses LINEST. But instead of raising the range of independent values to {1;2}, he added the X2 column and referenced it in LINEST. Same thing, really, but perhaps a bit less elegant.

Wednesday, April 13, 2016

Must-Have Extensions For FireFox and Chrome

FireFox is my favorite browser.  It beats Chrome in terms of usability.  But I'm curious to see if I could live with Chrome for a while.  So I'm taking it for a test drive.

First for safe browsing, I like to have...
NoScript (FireFox) // ScriptNo/ScriptSafe (Chrome)
Blocks all scripts from running.  Allows the user to add exceptions for scripts on any given domain, either just for the current session (temporarily) or also for future sessions (permanently).  I think I like ScriptSafe on Chrome better than NoScript on FireFox.  Why?  Because NoScript will reload the page each time a single host is enabled, whereas ScriptSafe will let you enable multiple host before reloading the page.  And ScriptSafe features color-coded buttons while NoScript differentiates between temporary and permanent whitelist with italics.

WOT (FireFox) // WOT (Chrome)
WOT, or Web Of Trust, warns you in advance when a link leads to a dangerous website, before you even click on it.  The database of dangerous links is maintained by the community of WOT users.  But this sometimes can lead to sites getting blocked when a user disagrees with a site's ideology.  Still, you can get more detail on each website's rating and decide for yourself.


For usability, try these extensions...
FBPurity (FireFox, Chrome, Safari, Opera)
Facebook could be useful if only _______ (fill in the blank).  Well, FBPurity fills in the blanks by filtering out the elements that you don't want to see.  I use it to block "food pron" (plus other annoying and recurrent topics), to keep videos from auto-playing, to hide the reactions bar, to always sort posts in Most Recent order, to hide the newsfeed, etc.

LastTab (FireFox) // CLUT (Chrome)
N either FireFox nor Chrome cycle through tabs with Ctrl-Tab the way Windows cycles through active programs with Alt-Tab.  These extensions alter how these browsers behave when you press Ctrl-Tab.  So rather than cycling tabs from left to right, Ctrl-Tab cycles in Most Recently Used order.  There is one caveat, though.  Chrome extensions are not allowed to redefine default keystrokes (such as Ctrl-Tab), so none of the MRU-type tab managers on Chrome can fix Ctrl-Tab.  However, you can bind CLUT to Ctrl-q and Ctrl-Shift-Q, which is just to the right of Ctrl-Tab and Ctrl-Shift-Tab.

Password Management
Both Chrome and FireFox come out-of-the-box with the ability to remember the username and password needed to log in at each unique website.  However, FireFox can remember multiple usernames and passwords for any given site.  After looking for a Chrome extension to get Chrome to work this way (and failing), I thought I stumbled across an experimental option to enable the behavior.  But perhaps not, since the setting I thought I discovered doesn't affect this at all.  Rather, Chrome (at version 49) just started behaving the way I wanted it to!

View Selection Source
In FireFox, you can select content, right click on it and then choose a command to view the source code for that extension.  Chrome provides an "Inspect" command, but it reveals only the CSS details and not the complete HTML.  The View Selection Source extension for Chrome (or its equivalent) is necessary to see the snippet of HTML that's rendered by the browser for that selected content.  Yes, you can press Ctrl-U to view the source of the entire page in a new tab.  But then you have to search for the content you're interested in.  That's awkward, and it works only if the content can be pasted into the search bar.  The weird thing about the View Selection Source extension is that it doesn't come up if you search for it on Google Play.  I found the link in a post on the Help Center.

Save As... / Print To... PDF
Chrome has a built-in PDF printer that it calls "Save to PDF."  It works great, and there's no need to install a separate printer driver.  But you'll have to choose at least one of these three options to get FireFox to save a page as PDF, too.
  1. Install on your computer a PDF Printer Drive, such as PDFCreator or CutePDF.  (Both are free to download and use.)
  2. Install in FireFox a PDF printer extension.
  3. Use an online Web page to PDF service.
I like the first option, since the extensions I've come across either save the web page as a image or send the HTML over the internet to a server to perform the conversion.  I like the ability to select and copy text from the PDF, which is not possible with an image.  And when I generate PDF, it's usually to record a financial transaction, the details of which I'd rather keep on my local hard drive.

At one point I couldn't get the PDF printer drivers to work with FireFox.  Before giving up and switching to Chrome, I came across this Mozilla support page.  It turned out that resetting the print_printer setting fixed it.  As well, I've had to delete the prefs.js in order to solve a problem with the PDF coming out with all blank pages.

What are your favorite Extensions / Add-ons?


2016-07-09 LG Added the section "Save As... / Print To... PDF"
2016-06-13 LG Added "View Selection Source" paragraph.





Tuesday, April 12, 2016

Notes on Setting Up Windows 7

Recently I had to set up fresh installations of Windows 7 on two computers.  Here are some tips to make that process go a bit smoother...

1. Windows Update #1 -- Microsoft has released hundreds of recommended and important updates for Windows 7 since it was introduced.  All that data is a burden for Windows Update, and the update process can bog down on slower computers.  To remedy this, you'll want to download the update associated with KB3102810 first before you even check for updates.  Adjusting your computer's Power Options so it stays awake during the long update process may also help.

2. Windows Update #2 -- I wrote about this before.  Unless you want to upgrade to Windows 10, you'll want to hide the update KB3035583, or uninstall it if it already got onto your system.

3.  Gadgets -- Third party gadgets are no longer supported due to "serious vulnerabilities" in the Windows Sidebar.  You'll still be able to add the default Microsoft ones, such as "Clock," "Calendar," "Slide Show" and "CPU Usage" (my favorites).  But I also liked the third party "Network Meter," which I'd use often to verify download rates.  Since Network Meter is no longer available, I figured out that I can use ResMon to do something similar.  To have ResMon (almost) mimic Network Meter I minimize the various components in the left pane of ResMon and resize the window so that only the network graphs show up.  And I add a shortcut to ResMon.exe in my StartUp folder.

Do you have any tips for setting up Windows 7?  Please share them!

Saturday, March 26, 2016

Taking the Plunge

Several weeks ago I took the plunge and bought myself a cell phone.  This leaves my brother as possibly the only person in the USA who doesn't have one.

Many years ago I bought cell phones for both my wife and daughter.  But I scoffed at the idea of using one myself.  "No one wants to talk to me," I'd say.  As for emergencies, I'd say, "Everyone else has a cell phone.  I can ask someone to call for help."  And I could send texts via e-mail for free to my daughter's cell phone from my tablet.

So why get one now?  My motivation was not self-interest.  I got one so that my chronically-ill wife could get in touch with me easily in case she had a flare up.  As well, the tablet could send e-mail only when connected to a Wi-Fi network, so I'd have to struggle to find free public Wi-Fi in order to text my daughter.  Now that I have a cell phone, I can exchange texts with her wherever I happen to be.

Which cell phone did I choose?  Which plan?  Naturally, this Luddite was compelled to look for the cheapest and most basic phone and service.  But the Geek in me tempered that with technological requirements.  For example, since we already had two cell phones in use at our home, I looked for a device that would connect to the same (GSM) network.  I also wanted a device that could be charged through a microUSB port so that I could use a generic charger.  And I wanted push buttons, not a touchscreen.

I decided that for my needs, a pay-as-you-go plan would be far cheaper than a contract.  So I researched the plans and found out which providers used the network we were already using.  And I kept my eyes open at drug stores for those providers' phones.  And then I found a push-button phone, discounted 50%, for $4.99.  I bought it, despite the fact that I couldn't tell how it connected to its charger, and despite the nagging feeling that it was already obsolete.

Well, it turned out that it was obsolete -- I wasn't able to activate that $4.99 cell phone.  The company's customer service explained that the device wasn't supported in my area, and that they'd send a different one.  And the phone didn't have a microUSB, either. But I hoped that the replacement device would have one.

I waited, and I waited, for the replacement phone.  Finally, after two extra phone calls to customer service, which involved promises that I'd get it in two days, I got it.

They sent me an LG touchscreen phone.  I was initially disappointed about the touchscreen, but I tried to maintain an open mind.  "At least the device charges through a microUSB port," I told myself.  Also, this device had a "3x minutes, texts and data for life" plan associated with it.

It activated easily enough.  But something seemed wrong.  Every time I tried to make a phone call, the keypad would disappear from the screen as soon as the call connected.  So I wasn't able to "Press 1 for English" or anything like that.  (See, that's why I want a push-button phone.  Real buttons hardly ever disappear.)  Eventually, I figured out how to get the display to turn on.  If I held the power button down as if to turn off the phone, the screen would light up asking if I wanted to turn off the phone.  I could then respond "No" and gain access to the keypad without the phone disconnecting.

Even though I was able to use the phone, I decided that the phone was defective and needed to be replaced.  First, I visited the LG website and quickly found a customer service agent to chat with.  She "talked" me through the steps of rebooting the phone and then asked me to retest the phone.  It continued to misbehave, so she suggested that the proximity sensor was faulty and encouraged me to contact the provider to get the phone replaced.

I saved the chat text and sent it to one of the provider's customer service contacts, who again asked me to reboot the phone and try it again.  Finally, I got them to agree to send yet another phone, which arrived quickly and worked properly.

All of the sending and returning of phones, although time-consuming, was paid for by the provider.  I probably could have asked to have some minutes refunded because of all that I wasted while testing the phone, but I decided I was still ahead.

Eventually I bought more minutes and extended the activation period out 2 years.  I figured that the phone and service cost about $6 per month, assuming the phone lasts the entire two years.  So overall I'm pretty happy about it.  The only issue I have now is this: how do I carry the thing around all the time?

Wednesday, March 16, 2016

How About Never?

A coworker had just bought a refurbished computer with Windows 7 OS and was dutifully applying updates.  He noticed a new icon in the taskbar tray and clicked it.  The program presented him with the opportunity to upgrade to Windows 10.  It implicitly asked when would you like to download Windows 10?  The dialog box offered two buttons labeled "Upgrade now" and "Upgrade tonight."

How about Never?  That was not an option.

The Gwx.exe and GwxUX.exe programs make it easy for users to reserve their free copy of Windows 10.  They appear after the user applies the update associated with KB3035583.  And they disappear after the user uninstalls that update.

This "How To Geek" article describes it all in detail.

My previous post discusses why you might want to avoid upgrading.

Friday, July 31, 2015

The Windows 10 Giveaway

As of Wednesday Microsoft started giving away Windows 10.  What would you be giving away if you upgrade?  Privacy?  Security?  Performance? #UpgradeYourWorld

According to the Free Software Foundation1:
  • Windows' 10's privacy policy asserts the privilege to sell almost any information it wants about users, even creating a unique advertising ID for each user to sweeten the deal.
  • Microsoft announced that, starting with Windows 10, it will begin forcing lower-paying users to test less-secure new updates before giving higher-paying users the option of whether or not to adopt them.
  • Microsoft is reported to give the NSA special security tip-offs that it could use to crack into Windows computers.

"What am I supposed to do about it?" I hear you ask.

Close Windows, Open Doors
Close Windows, Open Doors


1 https://www.fsf.org/windows


Thursday, June 25, 2015

Undo the Default App Selection in Android

Here's the scenario....  Your Android device presents you with a choice of apps to complete an action with.  You're supposed to select the app and then select either "Just Once" or "Always."  Either way the app opens to complete the action.

If you selected "Just Once" you'll have to choose again the next time you need to complete that same action.  That might seem annoying.  But what if it's the wrong choice?  If you choose "Always" you won't get to choose again, at least not easily.  And if the app cannot complete the action successfully, what then?

According to many lame blog posts and webzine articles, it's "easy" to change your mind after choosing "Always."  They say to just press the app's "Clear Defaults" button.  Here's one such article on AndroidCentral.

Fortunately AndroidCentral is swarming with brilliant users who are much more sophisticated than the folks who write the articles.  I say "fortunately" because when I needed to change the option of using Photos for downloading an image file attachment, the article's advice was useless because Photos' "Clear Defaults" button was greyed out.

A user called Siddhartha Gupta suggested that to remove Photos as the default app, it's necessary to change the setting for Google+.  That didn't work, either.

A user called ChromeJob pointed out that there's "a 'reset app preferences' in the action overflow button. This appears to reset ALL default app choices at once."  If only it were that easy for me.  It didn't work.

The thing that finally worked for me was to revert to the factory version of Photos by pressing the "Uninstall Updates" button.  After doing that, I was presented with a choice of two other apps to use.  The idea to alter Photos' version came to me after reading a comment byGrillMouster who stated that "when any of those apps receive an update the ["Just Once" / "Always"] dialog will pop up again, even if you had previously set an app as the default."

If you want the very gory details of why Photos didn't work, please read on to find out what I was trying to do.

I had used Firefox to log in to an Exchange Server using an Outlook Web Access (OWA) client hosted on a web page.  I then opened an e-mail that had a JPG file attached to it.  When I attempted to download the attachment, OWA again wanted me to provide my username and password.  Photos was unable to handle that request (and neither was Firefox).  It was only by completing the action with ES File Explorer File Manager that I found out about the need to provide username and password.  I've included this detail in case there are others who are having trouble downloading attachments with OWA.

Saturday, June 20, 2015

My Recent Repair of a Laptop AC Adpater

Yesterday, my laptop wouldn't charge when I plugged it in.  The battery had drained overnight, so the laptop was unusable.  I quickly figured out that the AC adapter has suddenly stopped working.

My nearby Staples had a universal adapter in stock at 20% off, so I picked it up and was soon back in business.

But then I wondered why the "old" adapter had failed. The technician at Staples said that most fail due to a broken wire near the connector that plugs in to the computer.  I know that if you flex any wire enough that it will break.  But this computer was kept in the kitchen at home, and the cable stayed in one place most of the time.  I decided to take it apart and fix it.

Most of the repair guides for Laptop AC Adapters resolve a break or short in the wire at one of the ends of the DC cable.  One even recommends that you cut off the connector, and splice a new connector on, which is silly given that no casual user has a spare connector lying around.  This same guide says that if there's no voltage after cutting off the connector, the adapter is dead and you have to buy a new one.  Turns out, that's not true at all.

My repair approach was different.  I decided that I would crack open the adapter housing and then verify continuity from the circuit board to the connector with a DMM.  But as soon as I removed the housing, I saw the problem: Cold Solder Joints.  Whoever soldered the wires to the circuit board failed to thoroughly heat up both the pad and the wire.  So the solder didn't flow down the via hole and fully coat the wire.  This never would have passed inspection at my company.

I fired up my soldering iron and reflowed the three connections in less than two minutes.  It took at least five times longer for me to break open the housing.  Message to manufacturers of consumer electronics: If you won't bother to assemble the electronics properly, at least design the housings so that they're easy to take apart and put back together!  I glued it back together with RTV, and it's curing as I write this.

I've fixed several items with this type of reflow repair, including a fairly expensive audio receiver.  A soldering iron and the ability to use it can keep you from throwing out perfectly good electronics.

Tuesday, June 09, 2015

Free Excel Tutorial

I'm still using Excel 2003 at work.  It does all we need it to do.

And at home, Open Office's Calc is so compatible that I can forgo Excel completely, although I still use the Excel Viewer.

But there are some really neat features of the latest Excel.  I especially like Data Bars and Color Scales.

To learn more about them, I studied this Excel Tutorial from Udemy.

Some of the other tutorial sections were helpful, too.  For example, Pivot Tables have been updated.  What used to be Page Fields is now Filter.  And unlike Page, Filter allows you to choose more than one value.

Monday, April 27, 2015

Reverse the Order of Worksheets in an Excel Workbook

Today I found myself wanting to reverse the order of sheet tabs in an Excel file.  The VBA code snippet below does just that.

Sub Worksheet_Reverse_Order()
Dim MySheet As Worksheet
Dim i As Integer

For Each MySheet In Worksheets
Debug.Print MySheet.Index, MySheet.Name
Next

For i = 2 To Worksheets.Count
Set MySheet = Worksheets(i)
MySheet.Move before:=Worksheets(1)
Next i

For Each MySheet In Worksheets
Debug.Print MySheet.Index, MySheet.Name
Next

End Sub


Background...
I had been maintaining weekly status updates as Excel spreadsheets, all grouped into one XLS document.  Each week I'd add a new sheet to the right of the previous week's worksheet tab.

But due to a change in workflow, I now have to copy the new sheet into that workbook rather than create it in the workbook.  In order to keep placing the new sheet after all the others, it's necessary to scroll to the end of the list of sheets and select "(move to end)".

"It would be so much easier if the sheets were in reverse order," I sighed to myself.  The thought of dragging them into reverse order manually was, well, unthinkable.  And thus this VBA macro was born.

Sunday, October 12, 2014

When Flourescent Lights Go Bad

Fluorescent lights produce a lot of light for little power.  My kitchen lights, which use two T9 bulbs, are rated at 32W, 2400lm and 22W, 1400lm1.  The bulbs are expensive and not easy to find, but they supposedly last five years.

The problem is that the performance and longevity of fluorescent lights depends on the ballast.  This is an electrical module that conditions the current, and it's not 100% efficient.  Also the ballast will degrade and eventually need to be replaced.  Sometimes a faulty ballast makes itself evident when the light flickers, or when the light doesn't turn on immediately and you need to flip the light switch off and on to get it to light.  At this point the bulbs will burn out quickly.

The ballast is even more expensive and harder to find than the bulbs.  And replacing the ballast isn't meant to be done by the consumer, although a home owner who can replace a light switch or electrical outlet will be able to replace a ballast in about ten minutes if the fixture is designed well.

I mention all this because I again find it necessary to replace the ballasts in the two kitchen lights.  In fact, I was thinking of replacing these fixtures with new fixtures that have multiple sockets for standard (Edison screw) bulbs.  I figured this was a better long-range solution because it would allow me to use Compact Fluorescent Bulbs today and then eventually graduate to LED bulbs.  Never again would I need to search for the expensive ballasts and replace them.

But I did manage to find the ballasts for quite a reasonable price.  So it didn't make sense to replace them this time.  But in ten years, if I'm still in this house, I think I'll be buying new fixtures.


1 For a comparison of the lighting efficiency of various types of bulbs, please see https://en.wikipedia.org/wiki/Luminous_efficacy#Lighting_efficiency.

Thursday, August 07, 2014

Trials with an Old Computer

About six years ago, I mused about what to do with an old computer, a 500MHz Pentium III.  My idea was to reformat the hard drive (20GB) and install one of these operating systems: Windows 2000 (already obsolete); Windows XP (facing obsolescence); and Linux (Ubuntu, although I don't recall why I decided on that flavor).

I tried all three plus Dyne:bolic, a Linux variant specialized for music and video production on under-powered computers.  Here's how I fared....

Dyne:bolic was easy to try out, and I didn't have to reformat the Window NT drive to do it.  So I tried it first.  After downloading version 2, I burned the ISO image to a CD.  It booted up just fine and I ran it from the CD.  It performed well, but it was set up for a single root-level user, and it wouldn't "play" Flash content.

Next was XP.  The first problem I had was that I couldn't activate the OS, even though I had a valid key.  But I played around with it anyway during the evaluation period.  Just twenty minutes was enough to know it would be way too slow.

Then I installed Windows 2000.  This involved a lot of tedious business with multiple CDs for the OS itself, then Service Pack 6 and then more CDs with security software and utilities.  Everything went well until I installed the antivirus program and updated it.  After that, the OS would not start.

Finally I decided to give Linux a try.  Rather than download images files, I decided to search the local public library system for Linux books that had accompanying CDs.  And I limited my search to old books, too, since I really needed the installer to be on CD-ROMs and not a DVD.  There were some Red Hat Linux books, so I got one and tried it.  It installed and ran really well except for the web browser, Mozilla, which had me pressing Ctrl-Alt-Del and longing for Task Manager to come up so I could kill it.

Of these four options, Dyne:bolic was clearly the best.  Unfortunately, by the time I got around to realizing it, Jaromil released version 3.0.0, whose 1.6GB image now must be burned onto DVD, not CD.  (I can't find the CD that had version 2 on it. And booting from USB is not an option in this computer's BIOS.)  This latest Dyne:bolic is totally awesome -- I tried the Live CD on my main home desktop (a P4), and I created a small virtual machine on my work computer, which boots the image file.

In order to run D:B3 on my PIII, I need a DVD drive.  Since I had two on my main desktop, I removed one and installed it on the PIII.  But, alas, it didn't work.  The computer detected the drive, but it won't boot from it, and Linux won't mount it.  So I think the laser is shot.  I've encountered a few non-functioning DVD drives in this manufacturer's computers, so I really do think the drive is defective.  In fact I wasn't able to boot from the drive recently when it was in the P4 that I took it out of.

So this is where I am now.  I need a working IDE DVD drive, which are expensive and/or refurbished.  There are adapters that can convert a SATA drive to IDE, but that's an extra expense I didn't want to pay.  Plus, I'm not sure this small form factor case will have any room for it, although I can put the new SATA drive with IDE adapter into the main desktop and move the working IDE DVD drive from the main desktop to the PIII if I really had to.

If / when I clear this hurdle I'll check in again.  Hopefully D:B3 will still be available!

Sunday, July 06, 2014

Creative Door Repair

The back door of our home never quite opened and closed smoothly. It was necessary to lift the doorknob while closing it in order to prevent the bottom from scraping the threshold.

Very recently the upper hinge pulled completely away from the door frame.  My wife and daughter couldn't finesse the door closed any more.  I re-tightened the screws, but the holes for the screws had widened, so the screw threads no longer had enough wood to bite into.  The hinge wouldn't stay secure for long.

My first impulse was to replace the screws with longer ones of the same diameter.  But not finding any in my collection, I realized I would have to visit the hardware store.

I really enjoy going to the hardware store.  Not the big, nation-wide chain stores like Home Depot or Lowes, though.  I prefer the small, neighborhood shops that seem to carry the odd-ball bits of fixture parts that were used in our neighborhood over fifty years ago when our homes were built.  Our stores are usually staffed by a retired handyman or engineer.  Or maybe the guy just likes hanging out there, giving out free advice without even getting paid for it.

Alas I was too busy to make the trip.  So I busied my mind, thinking of alternative repair options while carrying out the many tedious chores I had to deal with.

My next idea was to plug the screw holes with wooden dowels.  In fact I had many ¼ inch dowel pins left over from an old wood-working project.  I could use those.  But because they were much larger than the screws and the holes, I'd have to drill out the holes first before inserting the pins.  And then I'd have to drill pilot holes into the dowels themselves so that I could get the screws into the pins.  And I'd probably have to use carpenter's glue to hold the dowel pin in place before drilling.

If I had much smaller dowels, I could simply stick them into the holes and jam the screws in.  This would certainly be enough to keep the screws fastened tightly.  But because I didn't have the smaller dowels, I'd have to go to the hardware anyway.

Finally the solution came to me.  I had all the dowels I needed right outside my door!  All I had to do was stroll through the wooded area of our yard to find the right size twig.  Which I did.  It took about 30 seconds.

One oak twig about four inches long was enough to fill all four screw holes.  I broke the twig into four pieces and inserted them into the holes and tightened the screws.

And now the door opens and closes easily, without needing to be lifted, and without scraping the bottom.

This to me is what makes home repair an art form.

Friday, June 13, 2014

Execute Text in MS Word Using the System Shell

I was writing a tutorial in Microsoft Word that describes commands that the reader is supposed to enter at the command prompt.  I thought it would be neat if I could run those commands from within Word to validate them as I entered them.

And so I came up with a surprisingly simple VBA subroutine that sends selected text to the shell.  It is quoted, below.  The code should be placed into a module in Normal.dot.

Note that I invoke two statements in the Shell.  They are separated by the double ampersands.  I combine them into a single string (strCmd) that I pass to the shell.

The first statement is to change to the current working directory, which I assume is the same directory that the Word document resides in.  This isn't fool proof, however.  One failure mode would be if someone were to start Word and create a new document without saving it to the hard drive before calling the routine.  Another failure mode would be if the Word document were to reside on a remote share through a UNC path, such as \\FileServer\ShareName\tutorial.doc -- it's not possible to CD into a UNC path.

The second statement is merely the selected text.

Also note that strCmd  is preceded by the Win32 command prompt CMD.EXE.  The "/D" switch makes sure that no "AutoRun" commands get executed.  The "/C" switch terminates CMD after the command is finished executing.  CMD is included because Shell isn't able to find DOS commands such as CD.

Sorry for the small font on this source code, but I wanted to ensure it wouldn't wrap.

Sub InvokeWithShell()
' Executes the selected text to using the shell
' 2014-06-09 LudditeGeek Created
    Dim strCmd As String
   
    If Selection.Characters.Count <= 1 Then
        MsgBox "Nothing Selected!", vbExclamation, "Invoke With Shell Macro Message"
    ElseIf Selection.Paragraphs.Count > 1 Then
        MsgBox "Multiple Lines Selected!", vbExclamation, "Invoke With Shell Macro Message"
    Else
        strCmd = Selection.Text
        Debug.Print "Invoking " & strCmd
        strCmd = "cd " & ActiveDocument.Path & "\ && " & strCmd
        Shell "cmd /D /C " & strCmd
    End If
   
End Sub

Saturday, March 01, 2014

Blackphone and Webroot

Friday on NRP, Morning Edition featured the Blackphone, a smart phone with privacy as its number one priority.  Also mentioned were Black, Boeing's super secure smart phone, and Webroot, a security application.

Read more at http://www.npr.org/blogs/alltechconsidered/2014/02/28/283523473/a-smartphone-that-tries-to-slip-you-off-the-grid.

Saturday, February 01, 2014

Disable Outlook's Junk Email Filters

After upgrading to Outlook 2010 over a year ago, it became apparent that its junk email filter continued to work even after we disabled it.

It took so long for me to notice because I use Popfile to categorize the email I download from my ISP's POP3 server.  Popfile would catch the most obvious spam before the Outlook junk email would process it.

But occasionally a message that Popfile marked as valid would end up in the Deleted Items folder.  Outlook's occasional false positive would make me wonder what was going on, but it happened so rarely that it was easier just to check for these false positives than to research the issue.  Besides, the corporate bulk mail filter running on the Exchange serve would stash things into the Junk Email folder, and I needed to check for false positives from that filter.

But then there was an incident that triggered an intra-departmental1 outcry about the issue.  It was the day that several messages from our Content Management System got flagged by Junk Email and then deleted, causing folks not to notice updates on a few project files.

We all dutifully set Outlook's Junk Email filter to Disabled.  But I continued to see valid messages from my ISP placed into Deleted Items.  Recently I obtained a few spare moments2 and quickly found a solution to the issue.  It was my favorite Outlook/Exchange website that I landed on.  Here's the link:

http://www.slipstick.com/outlook/how-to-disable-outlooks-junk-email-filter/

The text says to change the value in a registry key, but in my case, the key didn't exist, so I created it, first.

Only time will tell whether this works.  I will know for sure only if it doesn't.  I suppose I can find an old message that triggered a false positive and send it to myself, but the header of that message would be different from the original header.


1 The emphasis is on the part of the word that contains "mental".

2 A good way to obtain spare moments is to schedule a meeting right after another meeting, so that if the other meeting runs late, the participants will be milling around outside the meeting room.  After a while, you get a sense of which meetings will run the longest based on the topic and especially on whether certain coworkers will be in them.  Some meetings can run so late that the folks who mill around will disperse and take an additional five minutes to reassemble, assuming they haven't gone off to lunch or embarked on an early vacation or retirement.

Friday, October 18, 2013

Excel Hyperlinks -- Relative vs. Absolute Path

I rarely insert hyperlinks into an Excel spreadsheet.  So every time I do, I get burned by Excel's predilection for turning Absolute paths into Relative paths.

Here's the scenario...

I'll use Excel to create a flat file database on my local hard drive.  I'll include links to the file server on the network using UNC paths, such as \\File-Server\Share-Name\Path2File\MyFile.ext.  (The Ctrl-k keystroke is really handy for creating hyperlinks, BTW.)

After building the table by adding fields in columns, adding formatting, and entering a few records in rows for testing, I'll consider the database to be production ready.  At this point I'll upload it to the same file server that my links point to.

The next time a user opens the network version of that spreadsheet, Excel will convert those carefully-entered absolute links to relative links.  So if the spreadsheet resides in \\File-Server\NewShare\Reports\Databases\LG.xls, the links to MyFile.ext turn into this: ..\..\..\Share-Name\Path2File\MyFile.ext.  They work just fine while the spreadsheet remains in that location.

But suppose the user saves the database and then e-mails it someone else in the organization, or copies it to his or her local hard drive.  The links are broken.  Furthermore, there's no easy way to fix them.  Search and Replace (Ctrl-h) won't find the ..\..\..\ in the hyperlinks.  You'll have to either fix them manually or write a program to do it.  And then the same thing could happen again, anyway.

But there is (thankfully) a trick to keep Excel from bastardizing your carefully designed links.  But it's a preventive measure -- you have to know about the trick before you get stuck with the link conversion.

The trick is to open the File Properties dialog.  Choose the Summary tab and enter C:\ in the text box next to the label that reads "Hyperlink base:".  Be sure to OK your way out and save.  These instructions are for Excel 2000 and 2003.  Later versions probably have the same properties dialog, but the way to open it might be different.

Really, it's best to do this before entering any hyperlinks.  Ideally, Excel would have an Option for this.  But alas, all I could find was a checkbox to enable Excel to prompt for workbook properties.

Hopefully, by writing this post, I've seared this information into my brain so that the next time I'm tempted to enter a hyperlink, I'll remember to set this property.

Hmmm, it just occurred to me to code this property using VBA....

Saturday, September 28, 2013

Brain Games

What kind of Geek could resist an opportunity to improve his or her mind?  If there is such a geek, I am not that kind.

So when I heard the advertisements sponsorship acknowledgments on NPR for Lumosity, I decided to check it out.

Lumosity develops and offers online games that improve mental function.  Their aim is to enable anyone to achieve his or her full potential, brain-wise, at least.

Lumosity provides two tiers of service: free, and subscription.  Users of free accounts are restricted to just three games per day, while subscribers have access not only to unlimited games, but also Personalized Training, Performance Tracking, and comparisons to other Lumosity users.

Since I joined way back on June 1, I've improved slowly and steadily to match the ability of someone half my age, assuming that someone is a slug.  Haha.  Just kidding.  Actually I have no idea because I'm using a free account.  All I know is that four weeks ago my score was 1025 and now it is 1111.

See?

Here's my Brain Performance broken down into various categories:


So check out Lumosity. It's free. It's fun. And you might just gain enough improvement to survive the upcoming Zombie Apocolypse.

Monday, August 05, 2013

Outlook 2010 Macros -- Adventures in Getting Them to Work

In a post that included Outlook VBA code, I mentioned that I stopped using the macro because of Outlook's tougher security.

Today, I decided to try to eliminate the main problem that I had, namely an inability to run the macro except from within the VBA Project IDE.

Here's the scenario:  I have code that worked on Outlook 2000.  I assigned a toolbar button to call it.  But the toolbar button doesn't work in Outlook 2010.  Nothing happens.  Pressing Alt-F8 and clicking Run opens the VBA macro in the IDE and displays an error "Subroutine or Function not found" (paraphrased).  But then I can run the macro by clicking the play button.

One aspect of my solution was to make sure macros were not being disabled.  I choose to self-sign the macro rather than enable all macros.  First I used SelfCert.exe, which I found in the Outlook program directory (C:\Program Files\Microsoft Office\Office14).  SelfCert.exe can be used to create personal certificate -- it would work for me on my local computer.  After I created the certificate, I signed the macro (Tools | Digital Signatures | Choose).  After clicking OK, I immediately pressed Ctrl-sto save the macro.  And then I closed Outlook.  But when I did, it asked me whether I wanted to save VbaProject.OTM.  Odd.  First I responded No.  But when I reopened the VBA editor and checked for digital signatures, it reported that the macro was unsigned.  But answering Yes to the prompt to save didn't help either.  The macro still wasn't signed.

I wondered if the Read Only attribute had been set on VbaProject.OTM.  But no, I had Full Control rights on the file.  Yet, the file's timestamp was old!  It wasn't getting saved!  Ahh, but the old timestamp was a trick, an undocumented "feature".  According to this support thread, it was normal for the timestamp and file size of VbaProject.OTM to remain unchanged after a save.  (This is why the phrase "WTF?" was invented.)  I verified that the save was taking place by adding a comment to my code, saving, closing Outlook and then re-opening the macro.

After that little detour, I found that it was necessary for me to install the certificate in the "Trusted Root Certification Authorities."  This can be done deep within the bowels of the VBA editor.  Tools | Digital Signatures | Choose.  Click the link that says "Click here to view the certificate prope..."  Click the button "Install Certificate..." then Next.  In the next dialog box, click the radio button for "Place all certificates in the following store" then Browse.  Select "Trusted Root Certification Authorities" and then OK / Next your way out.  Save and close Outlook again.

BTW, every time you close Outlook, you should use Task Manager to verify that the Outlook process is not running.

Still the macro would not run except from within the editor.  But I found the solution in another thread.  My code was in a module.  After I moved it to ThisOutlookSession, I was able to assign an actual functioning toolbar button to it.

Whew!

It is very nice that even though I have other macros working that access the From and To properties of a message, I no longer get the annoying message box that warns me that my address book is being accessed and asks whether I want to allow that.


Saturday, May 25, 2013

Android Tablet Possibly For Sale

So far my tablet is leading me to the conclusion that it's not worth buying one.  While the portability of it is really neat, it's still not small enough to fit in any pocket, except perhaps a generous jacket pocket.  Sans jacket, I've stowed it inside my button-down shirt by opening one button, slipping it in, and then closing the button.  But during bouts of warm T-shirt weather, I'm forced to either hold the tablet or put it down somewhere when I'm not actually using it.

For example, when I went grocery shopping last week, I placed the tablet in the "seat" of the shopping cart.  When I was done shopping, and I had loaded the car, I returned the cart to one of the spots set aside for the empty carts.  As I walked away, I glanced back to make sure I didn't leave anything behind in the cart, and then I drove home.  And as soon as I got home, I wondered where my tablet was.  I realized I had left it in the cart.  And the reason I didn't notice it when I walked away from the cart was that it lay atop a store circular that had been folded over it by the wind.  Luckily it was in the same spot I left it.  But had I not been able to find it, I'd've not bothered to replace it or even miss it.  I might've felt a bit relieved.  In fact, right now I'm wondering how much I can get for it.

I like having a computer.  It enables me to communicate through e-mail, blogs, message boards and even social media.  And the mobility of it would be extremely fantastic if: 1) Free WiFi were accessible everywhere; 2) It didn't take ten times longer to compose meaningful content.  BTW, I'm typing this right now on a public library computer, even though I have my tablet with me and have access to free WiFi.  Even with the Nexus' Speech-to-Text feature and the Hacker's Keyboard, I still prefer to enter content through an "old fashioned" keyboard.

The marriage of location-aware note-taking and image capture that Evernote provides would be useful if the Nexus had a good-quality rear camera.

Friday, May 17, 2013

Blamed For Doing Its Job

The IRS recently was criticized for scrutinizing certain organizations applying for tax free status.  It seems that organizations that had "Tea Party" in their names received extra scrutiny.

First of all, "Tea Party" generally refers to a political organization.  And the fact is that political organizations are not entitled to tax free status.

Second, "Tea Party" is a reference to a revolt conducted by vandals who were opposed to paying taxes.

So these critics are essentially saying that an organization whose name implies that it's political in nature and opposed to taxes should not be scrutinized when it applies for tax free status?

Huh?

Friday, April 26, 2013

How I Got My Computer to Chime

It all started with a blog post by Sacha Chua that made me think, "I bet there's an app for that."  She described how she set up her smart phone to vibrate every half hour.

Soon after, I found Chime Time, by Hyperfine, which turned my tablet into an Aberdeen mantel clock.  And I loved the idea of chimes and bells so much that I also installed Bodhi Timer, by Yuttadhammo, which can be set up as a timer and play a variety of tones, including singing bowl, when the time is up.

Chime Time starts up automatically when Android starts up.  But Bodhi Timer does not, so I start it in the morning.  I might set it to go off every 15 minutes starting at about 7 minutes after the hour (or any 15-minute interval afterwards), or every 10 minutes starting at 5 after the hour (or any 10-minute interval afterwards), depending on when I can remember to do it.

Having bells and chimes sound off every so often reminds me to live in the present.  When I hear the sound I ask myself whether I'm using time mindfully.

However, my wife absolutely hates it.

Anyway, after enjoying this for a few days on my tablet, I wondered if there were something similar that I could use on my work computer.  I didn't feel like running the tablet just to have it make noise.

That motivated me to search on SourceForge, where I found TeaTimer.  But TeaTimer would pop up an alert box at the end of each interval because it was really intended as a timer for steeping tea.  So I decided to write my own in Visual Basic 6.

I wrote a simple application that would simply play a WAV file whenever it was invoked.  I chose chimes.wav from Microsoft Office, although I'm sure there's an equivalent from OpenOffice, as well.  Then I set a job in Task Scheduler to call it every 15 minutes.  There is a special trick to pulling this off, though, because while my program worked fine when invoked interactively, it refused to work when triggered by Task Scheduler.

I found the solution on the Microsoft Support website: http://support.microsoft.com/kb/86281.

Here's the source code in its entirety, comments removed for clarity:
Declare Function sndPlaySound Lib "WINMM.DLL" Alias "sndPlaySoundA" _
    (ByVal lpszSoundName As String, ByVal uFlags As Long) As Long
Public Const SND_SYNC = &H0
Public Const SND_ASYNC = &H1
Public Const SND_NODEFAULT = &H2
Public Const SND_LOOP = &H8
Public Const SND_NOSTOP = &H10
'Here are explanations for the parameters: (removed)
Private Sub Main()
    Dim SoundName$
    Dim x%, wFlags%
   
    SoundName$ = "C:\Program Files (x86)\Microsoft Office\OFFICE11\MEDIA\CHIMES.WAV"
    wFlags% = SND_NODEFAULT ' Or SND_ASYNC
    x% = sndPlaySound(SoundName$, wFlags%)

End Sub

Saturday, March 23, 2013

Android Tablet -- a GPS Device Poser

I concede that I was exaggerating a bit when I referred to my new tablet as "a GPS device, RF scanner, MP3 player, eReader, camera, digital voice recorder, hand held gaming device, clock, portable translator...." It's the "GPS device" boast that's questionable.

Well it depends on how you define GPS Device. If it's a merely a device that displays a map and shows you where you are on that map using the Global Positioning System network of satellites, then, yes, the tablet is such a device.

But if you expect the device to allow you to enter a destination and provide real-time instruction on how to get there, along with an reasonably accurate estimate of when you can expect to reach your destination, then the tablet is merely a GPS Device Poser.

On my Nexus 7, directions are provided by Google Maps, which does a very good job of routing. But something called Navigator assumes the role of proving the actual turn-by-turn directions and arrival time.

Navigator works fine as long as you follow the initial route and as long as traffic conditions do not change during the trip. For example, if you start out at home while the tablet has an Internet connection, Google Maps will check the traffic conditions and provide both a route and an estimate of arrival time that's fairly accurate. You have the option of downloading a rectangular map that encompasses the route, too, so you can use Navigator offline.

But during the trip when the Internet connection is missing, Navigator cannot adapt to a traffic problem. Well, that's to be expected, and it's no reason to find fault in the app. The real problem is that Navigator does not recalculate the trip when you deviate from the route.

On my 20-minute commute to work, I can take one of four different major routes, two of which are on state highways, both of which are littered by red traffic lights. So I like to take the back roads, which are scenic and have fewer stops, albeit longer. It's reasonable for Navigator to prefer the state highways. But when I ignore the chosen route, Navigator refuses to recalculate. Instead it provides directions to return me to the point where I went off course. So the closer I get to work via the back road, the longer the trip time. I've seen the 20-minute commute spike up to 1 hour and 45 minutes. And when I finally do come to an intersection with the highway, it will actually direct me in the opposite direction, presumably to reach a way point on it's own route.

Well there are other GPS apps, even free ones, that can provide turn-by-turn directions. Right now I'm evaluating Navfree USA: Free. It does a better job of dealing with my willful disregard of the planned route. But it's a little rough. For example, it fails to give you the first instruction at the beginning of the trip. Also you need to have an Internet connection in order to get directions to an address because it queries Google maps.  (That's not an issue if you've saved your destination as a Favorite.) I'm assuming that the same is true for Points of Interest.  The biggest problem with it, though, is that it will crash after 30 to 40 minutes and need to be restarted.

So alas, I'm not about to give up my Garmin Nuvi just yet.  It would provide real time traffic updates in some areas and serve as a backup to the tablet in the event that I needed to follow a detour.


Edited on 2013-04-13 to add two sentences to the Navfree paragraph.

Saturday, March 02, 2013

My Geeky Reward

Recently I took my stash of credit card rewards and, all at once, I bought a GPS device, RF scanner, MP3 player, eReader, camera, digital voice recorder, hand held gaming device, clock, portable translator....

That's one heck of a reward!

Well, if you haven't guessed by now, I bought a tablet.  I suppose "RF Scanner" might've thrown you off, but with the Scanner Radio app, you can turn an Android tablet into a police scanner as long as you're connected to a Wi-Fi network.  Plus you can listen to the goings on of the LAPD1 from the East Coast.

The six $50 gift cards that I bought with $240 of rewards allowed me to pay for the Google Nexus 7 tablet, tax included, plus the two-year warranty extension, which I chose because I was not paying by credit card.  I usually decline such extended warranty plans on the grounds that my credit card offers the same coverage.  But since I wasn't using the credit card to pay for the purchase, and I was saving so much money anyway, I figured I might as well go for it.  Although I do realize that the device might be obsolete before it expires.

Anyway, I love the device.   I found an app that works with my public library's downloadable book collection.  So if I'm in the mood to read Dave Barry late at night, I can use the app to borrow Dave Barry in Cyberspace, for free.


1 Los Angeles Police Department. The radio traffic of the LAPD and that of San Bernardino County was very popular a few weeks ago during the manhunt for Christopher Dorner.

Tuesday, October 09, 2012

Earth is 9000 Years Old!

I did not realize until just a few moments ago that our Earth is 9000 years old, and it was created in six days.  So says Rep. Paul C. Broun, a republican from Georgia.  He is a member of a key congressional science advisory committee,  so he must know what he's taking about.

He also refers to evolution, embryology and the Big Bang theory as "all lies straight from the pit of Hell."

http://www.huffingtonpost.com/2012/10/07/bill-nye-paul-broun-science-space-technology_n_1947125.html

Monday, September 17, 2012

Presidential Candidates' Answers to the 2012 Top 14 Science and Technology Questions

ScienceDebate.org invited thousands of scientists, engineers and concerned citizens to submit what they felt were the the most important science questions facing the nation that the candidates for president should be debating on the campaign trail.

ScienceDebate then worked with leading US science and engineering organizations ... to refine the questions and arrive at a universal consensus on what the most important science policy questions facing the United States are in 2012.

...We call on the candidates for President to also debate these Top American Science Questions that affect all voters' lives.
https://www.sciencedebate.org

Monday, July 30, 2012

Facebook's Illusion of Privacy

...whatever you post on Facebook, you should just assume that the public can see it, because even though Facebook tries to put in protections and permissions and privacy controls, there’s really no way to guarantee that only your friends can see your data.
http://spectrum.ieee.org/podcast/telecom/internet/stalking-on-facebook-is-easier-than-you-think

Tuesday, July 17, 2012

Putting Water Adhesion and Cohesion to Work

I lost the grommet that allows me to attach a drain hose to my air conditioner.  So I decided to see whether water's properties of adhesion and cohesion would come to my rescue.

I suspended the drain hose below the air condition drain opening.  Then I placed one end of a wet, rolled up paper towel in the air conditioner, touching the drain pan.  I placed the other end into the hose.  The set up is shown below.

Normally, you'd just let the water drip out onto the ground.  But this A/C is installed between a kitchen and a carpeted enclosed porch, and we wanted to keep the carpet dry.

The rig works like a charm.  No spillage.  All the condensate ends up in the bottle, which I then empty into the washing machine or the garden.  In fact it works better than if I'd used a grommet to connect the hose.  With the grommet, the water level had to rise high enough to breach the rim of the grommet.  In fact, I used to put a piece of cotton string in the grommet to help lift the water up over the grommet ledge and into the hose.  Otherwise, the water would leak out all four corners of the pan.

There is some rust forming around the edge of that unfinished knockout.  I'll need to paint that at the end of the season if I don't want the rust to spread.



Friday, July 13, 2012

How I Became Paging System Monitor

One of my unofficial volunteer work responsibilities is that of Paging System Monitor.  This is someone who listens to a page over the public address system and then verifies that the pager hung up properly.  Because if the person does not hang up the phone, no one else can issue a page.

Generally this doesn't happen often.  But when it does, it's inconvenient.  It can be embarrassing, too, if the pager continues speaking, thinking that the conversation is not getting broadcast to all the bosses.

Usually it's an easy job to find the off-hook phone, if the person included the (correct) phone extension number in the page.  When you hear, "Joe Smith please call 73," for example, you can assume that the pager used the phone at extension 73.  Then if the phone was not hung up properly, you (or Joe) can just call it, and that phone should ring on the second line.

But if it's one of those generic announcements, such as, "It's starting to rain.  If you left your car windows open, now's a good time to close them;" or "I'll be rebooting the file server in five minutes.  Please close all open files;" or "Would the janitor please come to the men's room -- it's an emergency.  Please bring a mop," then the process turns into a fun game of deduction.

Well, in the case of the call for the janitor, you can assume that the phone is near one of the men's rooms."  So you can walk over to any nearby office and check the phones.  But if a location isn't implied, then you have to revert to recognizing the sound of the voice and then figure out whom it belongs to.  This is easier than you might think.  In fact, I had a good lesson in grade school in how easy "voice recognition" really is.

We were reading a story out loud, and the plot hinged on a character figuring out who someone was just by the sound of his voice.  I asked the teacher how that could happen, and I expressed doubt that you can know who was speaking to you without actually seeing the person.  So the teacher decided to really convince me.  She invited me to close my eyes.  Then one by one, each of my classmates spoke, and I had to guess who it was.  There were only two out of about 30 voices that I couldn't figure out (and one of them belonged to someone named Joe, in fact).  Yes, the teacher was pretty cool.  But it was Open House Day, and our parents were also in the room.  So I suspect she might not have done this if she weren't showing off for them.

Anyway, once you know who the person is, you can usually resolve the problem by calling his or her extension.  Or you might have to walk around and find the person and then ask which phone was used.  I had to do this recently for an announcement the janitor made about locking up the building.  Usually he locks the building because he's the last to leave.  But since he was leaving earlier than usual, he wanted to let us know that one of us had to lock up.  It's a good thing I found him because he used a phone deep in purchasing that I wouldn't have guessed right away.

All this rigamarole wouldn't be necessary if the phone system's PA mode were designed to "time-out" after 30 seconds.  But again, technology fails us yet again, and we resort to wasteful effort to compensate.

Monday, July 02, 2012

Recalculating

I bought the GPS about one month before driving my family to Washington DC.  In order to get used to it, I would use it on my work commute.  I quickly discovered that it had an undesirable habit of choosing congested roads with many traffic lights.

It didn't seem to matter whether I choose Shortest Route, or Quickest Route.  It was oblivious to the Avoid Highways setting.  Even the intriguing Econo-Route setting made no difference.  It was stuck on an undocumented mode I call "Maximize Encounters with Red Traffic Lights."  And where I drive, at least every 1 of 4 traffic lights will be red on any given commute.  If you know how many traffic lights (L) are on the route, you can get a realistic arrival time (if you obey the speed limit) by adding this many minutes to the arrival time the GPS claims: T = 0.5 * L.  My meager 10-mile commute to work features an amazing 21 traffic lights and is ten minutes shorter at 3am when most lights are either green or disabled.

And unlike Monty Python's Flying Circus, I hate traffic lights, even when they're green.  Because a green light is one that is bound to turn red just as you get to it.  Of course anyone who has read my rant on traffic lights (and the follow up post) knows where I stand.

Monday, June 25, 2012

Computers Outnumber People in our House

With the purchase of the HP laptop a few weeks ago, the number of computers in our home exceeded the number of humans.

I bought the new laptop because the screen on the previous laptop went dead. And while the instructions for replacing the inverter board on the Inside My Laptop site were easy to follow, the screen remained blank. For a while I used this laptop with an external monitor. But then its screen started to work again. Yet, I cannot rely on it working all the time -- it seems to dislike rebooting. It's a shame because I just bought a genuine HP battery for it, and the OS (Vista Home Premium) should be around for a few more years.

And remember the computer that I wasn't sure what to do with?  Well, I loaded Windows 2000 Professional on it.  It turns out that Firefox 12 runs on Windows 2000, so it's a good enough solution.  However, after I installed and updated AVG Anti-virus, the computer failed to reboot.  I guess I'll try the repair option and then reinstall if it doesn't work.

I did try installing XP first.  But it was very slow.  Plus I had the issue of an invalid CD key and no prospect of activating it.  I do actually own XP, but I'm not sure how to convince the computer of that.

Another neat thing I do with this computer is I boot Dynebolic from the CD.  It runs really well, but there is the issue that there's no Flash player for it.  As well I couldn't figure out how to create multiple password-protected user accounts.  So I wouldn't want to use it for any secret, anonymous activity, like updating this blog, without pretending it's a public computer.

Wednesday, October 29, 2008

Tainted Chocolate For a Scary Halloween

The melamine that was found in tainted milk could be in the chocolate that's passed out this Halloween.

Please watch this "Candy Product Review 2008 of Potentially MELAMINE Tainted Treats, A SERIOUS Warning By Mike Mozart of JeepersMedia on You Tube" and warn others.

And consider giving out stickers, yourself.

Thank you.

Friday, October 10, 2008

Bailout, Schmailout

Congress thinks we need a bailout. Wall Street definitely needs a bailout. What do you think?

I'll tell you what I think. We don't need it.

Our economy is self-correcting. Higher interest rates caused trouble for people who were in too much debt. They could no longer pay back their loans. As well, the ever increasing cost for gasoline and heating oil put an extra strain on the entire working class.

But now, the rates on Treasury bills are ridiculously low. This means the rates on home equity lines of credit and the interest rates on ARMs (Adjustable Rate Mortgages) have fallen because they're both usually indexed to one of the Treasury bills.

We're also seeing much lower prices for gasoline. Drivers are practically swerving off the side of the road to stare at the prices. "Wait, did that actually read $3.19? No it must've been $4.19. Let me look again."

One big problem remains. Businesses may start to fire workers because they cannot finance growth projects or even payroll. In this case, the appropriate course of action for our government is to finance projects that lead to new jobs.

Imagine how many jobs $700 Billion could start. You could create a whole oil-free energy infrastructure with that amount of money. People would have jobs, and we'd finally be independent from unfriendly oil-producing nations.

But then, what kind of jobs will the greedy Wall Street CEO's get? My advice is to put them on disability -- essentially pay them to not work. We'll all be better off then.

Friday, October 03, 2008

More USA Election 2008 Resources

Watch the Biden-Palin debate online.

Then skip over to FactCheck.org to find out how accurate each candidate was.

The first Obama-McCain debate also is on Hulu.

Find the FactCheck.org response to it.

I wrote about Science debate two weeks ago.

Check out the Information Technology & Innovation Foundation's "Comparing the Candidates' Technology and Innovation Policies."

Scientists and Engineers for America helps you determine how each candidate voted on energy and technology-related bills while in Congress. (Its database covers all members of Congress):

http://sharp.sefora.org/



2024-10-01 LG Update links to FactCheck.org. Change SEforA links because it is inactive.

Thursday, October 02, 2008

Beware Bank Phish E-mail

Experts predict Spike in Fraudulent Activity Due to Banking Turmoil

Woking, UK. 25th September 2008 An
increase in fraudulent activity is likely to follow the recent events
in the banking sector according to UK Company, First Cyber Security.
Customers with internet banking accounts are urged to take care if
asked to respond to emails from banks which have been named as being
involved in the recent takeovers and mergers.

- First Cyber Security (FCS)

Read more...


So be very suspicious of e-mail asking you to click a link and login. Okay, that's just about every commerce-related e-mail. But if the content urges you to "login right away and confirm personal information otherwise your account will be suspended," be very suspicious. And never enter personal information into the body of an e-mail itself.

I recommend that you equip your browser with an anti-phishing toolbar. You can learn more about them on the CastleCops website, in the Anti-Phishing Toolbar thread.

Thursday, September 18, 2008

Obama's and McCain's Answers to the Top 14 Science Questions Facing America

"Science Debate 2008 worked with ... leading organizations ... to craft the top 14 questions the [Presidential] candidates should answer.  These questions are broad enough to allow for wide variations in response, but they are specific enough to help guide the discussion toward many of the largest and most important unresolved challenges currently facing the United States."

Read the candidates' answers here:

http://www.sciencedebate.org












http://www.sciencedebate.org/news20080830.html

Friday, September 12, 2008

What Should I Do With This Computer?

I have an old computer that I'm wondering what to do with. It's a Pentium III, 500MHz, with 256MB RAM and a 10GB hard drive, with only less than 3GB left.

The case is a low profile style, so there's no bracket for an additional drive, which I do have. If I add the second drive, I'd have to attach it with double-sided tape.

The computer is configured to dual boot into either Windows 98 or Windows NT 4.0 SP. The NT partition has Office 97 installed on it. It still works. But I'd like to be able to install somewhat modern software on it and use the USB ports.

Three ideas I have:
  • Reformat the drive with a single partition and do a fresh install of Windows 2000. It would be comparable to the software configuration on my current desktop. This would get the USB ports working. But some programs, such as iTunes, no longer support Windows 2000.

  • Reformat the drive with a single partition and do a fresh install of Windows XP. Not sure how it will perform on this system, though.

  • Reformat the drive and install Ubuntu. Not sure what software is available -- maybe just a web browser, Open Office and a PDF viewer. And of course Emacs. Most likely no one else in the house would use the computer. And I wonder if I can get all the drivers I'll need.
The first step is to get the second drive installed, if I can.

What do you think?

Monday, August 25, 2008

Follow Up to "Career Doldrums"

Just a quick follow up to my previous post.

I was a bit unfair in saying that the book advises you to deal with doldrums by changing careers. That's not all it does. It's also great confidence booster, especially for baby boomers who are worried that they're too old to find a new job.

It explains the differences among the Baby Boom, Gen X and the latest generation (Gen Y. See Wikipedia's List of Generations for generation definitions.) This comparison serves as a foundation to convince the baby boomer that his/her contribution at a new company will be valued. Gen Y wants immediate gratification and frequent rewards, but Baby Boomers don't need that. Gen Y doesn't want to waste time giving their boss progress reports -- they just want to dive in to the work and finish it as quickly as possible.

The generational comparisons also help older workers understand their younger bosses, who come in to the workplace and turn it up-side-down.

So I found it interesting. And it ultimately helped me understand that I might be better off staying where I am.

Sunday, August 24, 2008

Resources from the "Career Doldrums" Book

I finally got around to reading "Escape the Mid-Career Doldrums: What to do Next When You're Bored, Burned Out, Retired or Fired", which I mentioned in my January 17 post, "Book Recommendations From CareerBuilder.com".

Basically, the Escape involves switching careers. This involves making extreme financial sacrifices and tapping into a vast store of retirement savings. The assumption is that you've already raised your child(ren) and he/she/they've somehow managed to become self-sufficient. For some reason, the book didn't mention playing the lottery.

This is not a book written for my generation.

Anyway, I wanted to record some of the online resources that the book offers:

www.engineeringjobs.com

Occupational Outlook Handbook -- www.bls.gov

www.hotjobs.com

www.jobbankusa.com

www.computerwork.com

www.computerjobs.com

www.dice.com

www.justtechjobs.com


Philanthropy News Digest -- news regarding fundraising and establishing a foundation.
www.foundationcenter.org/pnd

www.idealist.org

www.nonprofitoyster.com


Self Employment

www.betheboss.com

www.money.cnn.com

www.wibo.org "Boot camp" for entrepreneurs.

www.franchise1.com

www.smartbiz.com

www.sbaonline.sba.gov

Enjoy!

Saturday, August 09, 2008

How New Blinds and Windows Can Keep You Cool


I've had the new window shades since November, but I didn't start to appreciate them until the warm weather arrived.

The neat thing about these shades is that they open at the top and the bottom. So do the windows. (The picture is of Bali's DiamondCell - Solitaire 3/8" Double Cell Shade, which is the style of shade I bought and installed.)

So that means I can keep the top of the windows and blinds open even at night without compromising privacy. And the hot air that collects near the ceilings can leak out more easily.

It also helps that the window panes are coated to reflect the heat of the sun.

It's simple things like this that prevents us from wasting energy.

Tuesday, July 15, 2008

Social Networks for Book Lovers

I just learned about LibraryThing from reading Sacha Chua's blog post, "Taking book notes." LibraryThing is a social network for book lovers.

The general idea is that you enter books into your library by searching for a title or ISBN. There's also an import tool that will scan a webpage and pull in the ISBNs it can recognize. I used this to import the 106 books that were referenced on my "List of Books I've Read Recently," which I might decide to replace with some references to my library on LibraryThing.

Once you have books in your library, LibraryThing will provide links to profiles of users that have many of the same books in their libraries. You can navigate to their libraries and leave comments on their profiles.

Well, that's just a brief overview. Check out LibraryThing for yourself.

For a more in-depth discussion of LibraryThing and other such sites, check out NPR's All Things Considered discussion of social networks for book lovers.

Thursday, June 12, 2008

Help Our Airlines Save Fuel

Airlines are struggling with the ever-increasing cost of fuel. They've started to charge passengers to check baggage. Let's think of other ways they can stay aloft in this turbulent economy:
  1. Charge passengers a fee that's proportional to the total weight of the passenger plus all his/her baggage, both carry on and checked.

  2. Offer passengers stationary bicycles and other exercise machines to prevent DVT, but secretly use the machines to drive electrical generators, which can power such non-essential systems as entertainment, lighting and navigation.

  3. Offer passengers free refreshments in the terminal. Lace the refreshments with laxatives and diuretics. 1, 2
What can you do personally? Why not leave the heavy luggage behind? Just choose baggy clothing to wear at your destination, and put it all on before you leave your home. Better yet, don't even bother bringing extra clothes. Just buy your change of clothes at your destination.

With lots of creative planning, we can yet again save our beloved airline industry.



1 Empty passengers are lighter.
2 Whatever they leave behind can be used as bio-fuel.

Sunday, May 25, 2008

Driving to Optimize Fuel Economy

In my area, gas prices have jumped beyond $4.00 per gallon over the last couple of weeks. I ranted before about how traffic lights contribute to decreased fuel economy. But I didn't mention that driving technique can dramatically influence fuel economy.

An extreme type of driving that maximizes fuel economy is called Hypermiling. Generally the idea is to minimize acceleration and braking. Unless you're going down a steep hill, acceleration requires more gasoline than just maintaining speed. And braking converts all your car's motion (which came from gasoline) into heat energy. So essentially, braking is like throwing away gasoline.

If this is the kind of topic that gives you goosebumps, you might be interested in the forums at CleanMPG, especially Wayne Gerdes' post "Beating the EPA - The Why’s and how to Hypermile".

And rather than boycotting gasoline for one day, folks should either not drive on that day, or at least drive more efficiently. With the subsequent drop in demand, gas prices would relax.

Friday, May 16, 2008

MySpace Notes

My pre-teen daughter already has a website and just started a blog. So I figured I should start learning more about MySpace. She's not on MySpace right now, but she might be in a few years.

I've just finished reading "Me, MySpace, and I," by Larry D. Rosen. It suggests that parents open an account on MySpace because there are many areas on the website that you can't access unless you're logged in.

Many websites require users to provide a real name and real address when you open an account. This is particularly true of commerce sites like Amazon.com. So I was not alarmed when MySpace asked for my real name and town, "so other members can search for you." It assured me that it wouldn't display my name, but I cautiously provided a bogus name, anyway.

When I finished entering the required information, it showed me the profile page that it created for me. And there was the bogus name and town displayed in nice bold type. Thanks for preserving my anonymity, MySpace.

Well, anyway, I'm there now, and no harm was done to me.

Some things from the book I thought worth mentioning. This quote, for example:

"Some MySpace young people have told me that they like to pretend to be dumb just to see what other people do and say. One guy got a date with a girl by pretending to be a "C" student and when she met him and found out he was a "brain" she canceled the date."

- page 70

Check out http://www.ypulse.com for trends in the lives of tweens, teens and young adults.

Other resources:

http://www.isafe.org
http://www.parenthood.com
http://www.allianceforchildhood.net
http://www.kids.getnetwise.org
http://www.cybersmart.org
http://www.netsmartz.org
http://www.besafe.com
http://www.protectkids.com
http://www.webwisekids.com
http://www.internetbehavior.com
http://www.safeteens.com
http://www.blogsafely.com
http://www.commonsensemedia.com
http://www.safefamilies.org
http://www.wiredsafety.org
http://www.netfamilynews.com https://www.cyberghostvpn.com/privacyhub/guide-to-sharenting/

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