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Hmm.. I'm not sure of that experiment. At the beginning, is the coin bigger (cannot go in the hole), equal to (still cannot go in the hole) or smaller than the hole (can go in the hole)?
Putting the bottle in a freezer, would make the hole that little bit smaller, and then putting a "wet" coin would.. Oh I'm stuck! Oh well, I bet either way the result is that the coin falls into the hole. But I'm not sure why..
in honour of Anastasia, George and Karen...............and seanwhat you need2 tin canssome stringa friendwhat you dopoke a hole in the bottom of both tin cans, thread your string through both holes and tie them off.you should now a tin can connected to each end of the string, with the string stretched tight have your friend hold the can to his/her ear, whilst you talk in to the other can.what happens?