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When NASA first started sending up astronauts, they quickly discovered that ball-point pens would not work in zero gravity. To combat this problem, NASA scientists spent a decade and $12 million developing a pen that writes in zero gravity, upside down, on almost any surface, and at temperatures ranging from below freezing to over 300 C. The Russians used a pencil. Enjoy paying your taxes � 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,2013,2014,2015,2016,2017 1 comments so far | |
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