To this day, I've never felt dumber than when elementary school me thought that 100 pounds of bowling balls would fall faster than 100 pounds of feathers. This video doesn't show that riddle in action but something even cooler: how things fall at the same rate inside the world's largest vacuum chamber.
via Gizmodo http://ift.tt/13BB9IT http://ift.tt/1DWI0rz
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