Toorcamp 2018
Here’s the talk I gave at Toorcamp 2018 on making an FEG electron emitter: pdf | pptx.
2017: Year in Review
Looks like I haven’t made a lot of time for blogging this year. I’ve been too busy taking photos with Milly! Here are some of my favorites from the last twelve months. Pollen. Animals. New year’s wish…
Experiments in nano manufacturing
There’s Plenty of Room at the Bottom. —Richard Feynman With the recent demise of Milly’s electron emitter, I attempted to make a new one. Much to my surprise, it worked. Turns out making small t…
New Year, New Emitter
The quest for an ideal light source. We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light. —Not Plato What exactly is an electron…
Look into my eyes
What color are your eyes? There are many ways to answer that question. Statistically speaking, they’re probably brown. Unless you’re from northern Europe, in which case they’re probably blue. But what…
My genome: Let me show you it
tl;dr: download Rob’s source code In October 2015 I signed up as a beta tester for Arivale, a Seattle-based “scientific wellness” company. The service is something like nutritional-coach-meets-quantif…
Shrinking on battery power
Remember the hockey puck of doom that powers the Tesla Gun? It’s a ZVS driver (also called a Royer oscillator) that drives a flyback transformer using an 18V drill battery. I used to make them as…
The Quarter Shrinker returns
Back in 2009, I was one of several folks that built the coin shrinker at Hackerbot Labs. After several hundred firings and sitting in a closet for months, it badly needed some love. We moved it to my …
