The Mpemba paradox notwithstanding, I'm not going to heat water for the ice trays. Besides, if you look at the graph, the initial time to freeze hot water is extended for the cool down process.
Did Mpemba attempt to freeze two cartons of ice cream (one hot and one cold) at the same time? The warmth from the hot carton would most likely start the compressor cycle (depending on where the freezer was in that cooling cycle), which would cool the contents of the freezer faster. This falls under the category of too much college and not enough high school, methinks. Or perhaps in Mpemba's case, not enough high school.
The larger the temperature delta, the faster the change, but with farther to go the speed increase won't make up for the distance required to travel. At least that is my non-scientific, high school mentality explanation. Keep in mind that I didn't go to MIT, nor was I an architect of Obamacare. I'm just one of the people.
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Desert185 🇺🇸 (Retired Chemtrail vendor)
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