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Uploaded on Dec 4, 2011
http://blogs.nature.com/news/2011/12/... In a tongue-in-cheek contest of microscopic mobility, a line of bone marrow stem cells from Singapore beat out dozens of competitors to claim the title of the world's fastest cells. They whizzed across a petri dish at the breakneck speed of 5.2 microns per minute — or 0.000000312 kilometers per hour. Behind the fun is a serious goal: understanding embryo development and cancer.