Ben Krasnow

I finally succeeded in extracting caffeine from green coffee beans by using supercritical CO2. I built a high pressure chamber from 2"...

http://www.theamphour.com/2011/12/26/the-amp-hour-75-sprauncy-saccadic-spintherism/

I made these wooden pens (the metal parts came from a kit).

Every so often, internet news aggregator sites run a story about a research group that put an LED into a contact lens, then inserted it into...

In an earlier video, I tried to visualize alpha particles in supercritical CO2, similar to an isopropanol vapor cloud chamber. Someone comme...