Science!!!

Cool video. The host had an engaging manner, and brought out a number of cogent explanations to complement the excellent photography.

One thing I expected to see, but was probably omitted for brevity's sake, was a description of compressional (as well as frictional) melting of the ice. Water ice expands as it freezes; if pressure is applied to ice the reverse happens, leaving a film of water atop it.
 
Cool video. The host had an engaging manner, and brought out a number of cogent explanations to complement the excellent photography.

One thing I expected to see, but was probably omitted for brevity's sake, was a description of compressional (as well as frictional) melting of the ice. Water ice expands as it freezes; if pressure is applied to ice the reverse happens, leaving a film of water atop it.

Is that film considered chilled agua?
 
Cool video. The host had an engaging manner, and brought out a number of cogent explanations to complement the excellent photography.

One thing I expected to see, but was probably omitted for brevity's sake, was a description of compressional (as well as frictional) melting of the ice. Water ice expands as it freezes; if pressure is applied to ice the reverse happens, leaving a film of water atop it.

There was a bit of discussion around that in the Reddit thread I found the link from. Nothing too substantial though.

I was kind of surprised that the skate blade is going in a circle for the figure skating spins. I always thought it was rotating on a small portion of the skate blade.
 
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