Monthly Archives: February 2008

Shaken, not stirred. Ripple tank wall state Originally seen on the falstad.com website, the ripple tank applet is wicked awesome. It has been edited and can be opened on the Lecture Demonstration website. Find Simulations on the left menu, and … Continue reading →

In Demo Veritas » Blog Archive » Ig Nobel moments of science Cold Boyles was the riskier, and where is that video from the Ig Nobels? This is a 44 megabyte video videooo Here it is. of the Cold Boyles … Continue reading →

Safety. Okay, last week was fun.  Elder hard drives were disassembled, parts sorted and examined, properties of materials encountered, exotic sub-assemblies marveled over.  A splendid time with an undergrad, a post-doc, two friends from MoS, an SEAS colleague and an … Continue reading →

Is the satellite a problem because of hydrazine? I don’t know if regular people can pronounce reidio-nuclides and long term thermal electric generators, but that streak of dust is going around the world many times and will land on detectors … Continue reading →

A weaken’d version of the same was presented in Make magazine as a Howtoon. I’ve let my subscription lapse with a recently canceled credit card. I got tired of Wired after three years way back, and only check it out … Continue reading →

So one way to get fairly pure silver to make jewelry from is to refine sterling silver. The process is fairly well documented on the web. Nitric acid to dissolve, water to dilute, ascorbic acid to reduce, wash copper solution … Continue reading →