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Watch as this pocket laser ignites flash paper inside a balloon without first popping the balloon! Bill Evans Aug 23, 2011 243 views
Michael Killen asks climatologist Steve Schneider if he is a denier, sceptic or believer in climate… Michael Ruescher Jul 20, 2010 9 views
A Scientist creates a fully functioning robot. Bob Woolsey Mar 26, 2009 77 views
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