A friend of mine turns some of the ice trays in his freezer upside-down when he goes on vacation.
real-life/ice.trays New
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Problem
A friend of mine turns some of the ice trays in his freezer upside-down when he goes on vacation. Why? -- hochster@rocketmail.com
Show solution
If the trays are empty when he comes back, he'll know there was a lengthy power outage and any food in the freezer should probably be tossed... -- Bruce Bowler <bbowler@bigelow.org>