I built a full wave bridge rectifier. I attached it to a doorbell transformer and an oscilloscope to see what the resulting waveform looks like.

A Canticle for Leibowitz is just a great book, one of a kind.

When working with Linux (BSD or Unix, or even MacOS) command line programs, you often work with file names.

We did peppernuts before Christmas this year. We did a 6-cup-of-flour full recipe.

2024 haul, 2023 haul, 2022 and 2021 hauls

I read yet another paper about the Ordovician period:

The Great Ordovician Biodiversity Event (GOBE): definition, concept and duration by Thomas Servais and David A.T. Harper, Lethaia, vol 51, pp 151-164

There is a PDF of it.

I’ve read Men, Martians and Machines, and another Ace Double with Six Worlds Yonder and The Space Willies. many times since I was a child. The unifying theme here is: written by English sci fi humorist Eric Frank Russell.

At 2025-11-15T15:38:20Z, I submitted my Goofing on Meta blog post to the Hacker News link aggregation website. Shortly after that, at 2025-11-15T18:22:00Z, short blurb tech news website slashdot.org put an article about the same blog past in the Technology News section.

Since I run my own web server, I can see how the two sites’ users compare.

I put an oscilloscope on a doorbell transformer to see what the output waveform looks like.

I set up two Raspberry Pi SBCs with GPS boards as NTP servers earlier this year. I used an oscilloscope to see how far apart the “pulse per second” (PPS) pulses that the GPS boards output.

QAA Podcast (nee’ Qanon Anonymous), Premium Episode 238 and Unclear and Present Danger 2025-09-14 episode, cover Starship Troopers in very different ways.