Four short links: 19 June 2009

Inside-Out Multiplication Table -- very cool way to view the patterns of factors. Math is beauty with subscripts. High-Speed Camera -- capture 100 frames at up to 1M frames/second. The sample videos, of a bullet liquefying on impact and a shotgun string boiling past, are stunning. The Makezine high-speed photography kit is the cheap amateur version. Open Source Energy... http://ping.fm/ZOrtG