Yes, there is a simple puzzle that makes use of this. When carrying coffee back to the office, how do you insure that the coffee will be the hottest, by putting

Yes, there is a simple puzzle that makes use of this. When carrying coffee back to the office, how do you insure that the coffee will be the hottest, by putting in the cream at Starbucks or back at the office? A hotter object loses heat faster than a cooler object. It's actually a fourth power relationship to temperature. See Stefan-Boltzmann Law for the details.