Light bulb vs. Liquid Nitrogen
So incandescent lightbulbs are often made with a tungsten filament and the surrounded by arguing gas, to keep the tungsten from burning when it gets so hot it glows. And…
Photos
I tried to take a few pictures along the way. Mot but not all are mine. Endless thanks to all the other people that took pictures and shared them. Some…
Raspberry Sky
What you get when you add a Raspberry Pi to 7 independent rocket launchers? Raspberry Sky. We took this on the road to teach kids both science and programming. The…
Not a Ruben’s tube
So it’s not a Ruben’s tube, but what is it? Well, like a Ruben’s tube, it’s a metal container (cookie sheet) with evenly spaced holes in it. And we pump…
Not a Reuben’s Tube
Maybe a Reuben’s sheet pan? But it’s kinda like the same thing… holes drilled into one sheet pan that is taped to another that has propane pushed in and a…
Eben Upton at HSC
We were fortunate enough to trick Eben Upton to come and give a talk at our little Hackerspace
