Dean W. Armstrong

Amplifying audio without the use of any electronics: Audio Acoustic Amplifiers from Experimental Musical Instruments.

It seems all the iPhones as part of the once-unknown location tracking log all have visits to locations in northwest Las Vegas , all at the...

Did you know the distance between the center of the slots in the 120V standard AC outlet is exactly 1/2 inch? And so is the distance betwee...

I've been unable to get the DOS software AW-SRAD to work with the geiger counter for some time, on multiple machines, with Windows XP. ...

If you are curious, the resistance of a 300W type J halogen bulb, the ones you would find in those halogen torchiere lamps, is 3.3 ohms when...

One of the things I've always been interested in was radio; and part of that was scanning as much of the radio spectrum as possible to h...

I watched the end of analog TV at noon today for Channels 2,5, and 7. They unceremoniously just cut the power--one in a commercial and two ...

Unix time just went past 1234567890; here's a screen shot of a little script I wrote.

More gadget blogs need this sort of writing. We are using several Eee PCs here as dumb terminals for various headless servers and they work...

Have you ever taken a magnifying glass in a darkened room and focused the scene outside on a wall? Or just focused the sun or a bright ligh...

You might have read about a UCLA team that's developed a way to reduce UV degradation of thin film solar cell systems. They claim a pat...

There is a big misconception in the media reports about the attempted kinetic attack on USA 193 that may happen tomorrow night: it won't...

The end of another era in photography . Did you know Kodak stopped making black and white paper two years ago? The difference between that...

I run a copy of the Sloan Digital Sky Survey (data release 5). It sits on two large SQL servers and a single blade web server. I needed s...

This will probably be my last comments on the proposed New York City bill to regulate detectors, hopefully because it sounds like some peopl...

I received my latest box of goodies from Jameco, and in it was a particular weakness of mine. I'm a sucker for the latest and greatest L...

Compact fluorescent lighting is a hot topic in the media right now. Repeated utility and environmental group campaigns have encouraged peop...

As some people know, I work at the University of Chicago Library. I've been working on a project for some time now--a new "library...

I continue running through my overflowing Google Reader "Starred Items" list. TSA to punish fliers for facecrime a la New screeni...

This post is brought to you by the fact that I've been running a LiveCD version of the latest version of Ubuntu Linux on my home compu...