Dean W. Armstrong

This is a comparison of the broadcast band during the day (at top) vs at night (bottom). Many stations are required to lower their power ...

The nanosat CUTE, or rather the CUTE-1.7 + APD II , sends out a beacon in morse code. I picked it up with a simple antenna and a SDR. Time i...

I realized my first processing of the Sentinel 1A radar image of Walworth County, WI , was deficient and I lost a lot of the details, so her...

I've been working on manipulating the large images offered by the Sentinel satellite. I found an image of the city of Chicago region on ...

I happened upon a nice description of how to grab data off of the ESA's Sentinel satellite via Evan Appelgate and there's a bunch o...

I picked this soldering iron out of the ewaste recycling stream that students dump at the end of the year, figuring I could use another iron...

Perhaps you've heard of constantly circling Cessna planes, spending hours circling high above US cities. http://www.washingtontimes.com...

19. After another of my famously lavish parties, I sometimes walk alone out to Promontory Point at exactly 10:00 p.m. Thursday and glance l...

A cute colorful insect hanging on out a clematis vine. Graphocephala coccinea, red-and-blue leafhopper.

Background: Hyde Park Residents Puzzled by Mysterious Noises, Vibrations , Loud Hum at Night . Some random thoughts: I hear a vague dista...

Oversharing: Yesterday's catalog search items that caught my eye. (My search was all T acquired in the past six months published in the ...

I had a rust stain on the interior of a stainless steel dishwasher from contact with a rusting pan, and after having no success with CLR and...

For years I've encountered this issue, and it always perplexed me: why do a lot of toolboxes stink? I had always assumed it was rela...

A third CFL failed in my torchiere conversion I did back in the winter of 2008. I used this light about 7 hours a day consistently until m...

To improve my first cigar box guitar build, I added a piece of 2" x 1/4" mahogany mull casing (ripped to 1.5") to the neck. I...