Running on water: On the earth and on the moon

It would be even better on the moon. Yes, here on earth you can run atop a pool of water-mixed-with-cornstarch, as people are doing in this video:

But you could also run atop a pool of pure water—if you and that water were somewhere that has weaker gravity. The moon is one such place.  An experiment demonstrated the truth of that. The experimenters were awarded an Ig Nobel Prize in physics, in 2013, for their work. The prize was awarded to Alberto Minetti, Yuri Ivanenko, Germana Cappellini, Nadia Dominici, and Francesco Lacquaniti. Their study is “Humans Running in Place on Water at Simulated Reduced Gravity,” Alberto E. Minetti, Yuri P. Ivanenko, Germana Cappellini, Nadia Dominici, Francesco Lacquaniti, PLoS ONE, vol. 7, no. 7, 2012, e37300. This video shows the experiment:

  • Tony

    Mr. Wizard once filmed a cornstarch solution demo: less splash if you bring your full-force palm down on it than when you use just a bit of force!

    Can’t find it, but did find this demo:

    Non-Newtonian Fluid on a Speaker Cone
    2:20 Cornstarch Walk on Water – Spangler on The Ellen Show