So, we've moved to our new site! |
Thanks for being with us since 2001. As of August 2009, we found a new ice rink at:
www.hockeyphysics.com
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Final Theory...... Rotational Bearings!!! |
Niven's Theory states that the liquid water on the ice act as ball bearings. He observed the free movement of particles of water; thus there are molecular rotations which accounts for the low friction of a slider on ice. Niven reinforces his theory by explaining that these water molecules don't have the hydrogen bonds to lock them in place; moreover, these molecules may rotate with single bonds. Since he believes that a thin film of water already exists on the ice, heat is not a factor; simply, a slider will glide over the "bearings" without any disturbance.
(Petrenko, 1995)
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