RE: The Cool Science of the Slippery Ice
If it were just me, I'd say there is no thin layer of water above the ice since water solidification starts from the top. Well maybe I'm wrong, as it may start anywhere and then the ice moves upward due to density differences.
In a different experience, touch the body of a bowl immediately it is taken out of a freezer, and your hand would get stuck for a while, until it melts and then move freely, so I guess the pressure theory is right. If this is correct, I guess friction should be left out. Its either a body solidifies on ice or slips on it. (Still, this may be wrong. Experiments will always bring out the facts)
Well its certain that liquid water causes the slipperiness but its understanding at such low temperatures is the case now.
I don't think any solid is slippery
The people in here did not guess, they actually carried out many measurements to arrive at their conclusion. Things mostly ain't what they seem in the realm of science, it's only proven hypothesis after series of demonstrations that are what can be said to be the real deal.
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I need to be pedantic here and point out that you're only falsifying hypotheses in good science. Granted, you're often falsifying the null case of the hypothesis you have in mind, and 'failing to reject the null' is a subtle difference from 'proving a hypothesis', but it's important.
As an apology for my pedantry, here's a neat word which is related to your article: tribology.
I like that the falsifying in this instance is in italics. But when carefully examined, the case here is simple, the researchers arrived at the conclusion which was presented as they strive to find a conclusion to that event. In actual sense, people are still working on the project. Should we take their conclusion to be correct? That's a subjective answer which I'd like to hear inputs from the readers.
With the mindset I presented, we should not take their viewpoint to be correct. We can, however, consider it to be less likely to be false than the competing hypothesis.
That, I can totally agree with :D
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