Common Tunes
"A community directory of freely available music." From ice-cream truck music to Beethoven.
dead link: http://www.commontunes.org/
"A community directory of freely available music." From ice-cream truck music to Beethoven.
dead link: http://www.commontunes.org/
The Icyball was a commercially sold refridgeration system that had no moving parts and was powered by a heat source. Perfect for on the road cooling, or backwater farms with no electricity. This page discusses a home built modern version.
dead link: http://www.ggw.org/~cac/IcyBall/HomeBuilt/HomeBuilt.html
Very accurate sundials with easy adjustments for longitude and latitude. These are much prettier than the "World's Most Accurate" sundials, and much cheaper than the "Precision Sundials".
dead link: http://atensundials.com/
Makers of 3-D metal 'printers' such as the one used by Bathsheba Grossman (mentioned elsewhere on QZ Redux).
dead link: http://www.prometal.com/