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Here's how I understand the phenomenon: let's take the example of weights and rubber band, when a weight is put it does work on the band to stretch it, and heats it up, some of the heat gets dissipated into the air, so when the weight is removed, the rubber doesn't have the same heat energy (because some was dissipated) and thus can't do enough work to go back to the same spot.

Now here's my question: if I let the band (when stretched) dissipate most of it's heat (and thus leave it for a longer time), it should barely go up, and would start consuming energy from the air to contract again, so why is said that this phenomenon is more noticeable if the weight placement and removal is done quickly? Shouldn't it be slowly?

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