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The first thing I want to know is where we can get the cool, compacted NASA washcloths. But this new video from Chris Hadfield, commander of the International Space Station is pretty amazing. Hadfield has been working with schools and doing experiments suggested by students. This one was designed by students Kendra Lemke and Meredith Faulkner (10th grade) from Lockview High School in Fall River, Nova Scotia . They won a national science contest held by the Canadian Space Agency with their experiment on surface tension in space using a wet washcloth, and you can see the really nifty results here.
Below is another water-themed demonstration from Hadfield, how to wash your hands in space: