Friday, December 10, 2010

U.S. Navy's Record-Breaking Electromagnetic Railgun Shoots Projectiles at Mach 7
(Mashable) http://ping.fm/CFsQqhttp://news.yahoo.com/s/mashable/20101210/tc_mashable/us_navys_recordbreaking_electromagnetic_railgun_shoots_projectiles_at_mach7
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