Timeline for Melamine dish cools beyond ambient temperature
Current License: CC BY-SA 3.0
9 events
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| Apr 13, 2017 at 12:39 | history | edited | CommunityBot |
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| Sep 1, 2015 at 18:30 | comment | added | Kyle Oman | @Need2no I'm not convinced it's not because of your hands/perception, especially since we don't even know what "ambient temperature" is where you are. I'll say it again: get a thermometer and come back with data. If you really want to make progress, get a temperature curve, that might give some hint as to what heating/cooling mechanism(s) is/are at play. | |
| Sep 1, 2015 at 18:25 | comment | added | Need 2 no | The dish is not wet when it is left on the counter. It is dry. Although sometimes when it is picked up I have noticed some condensation on the dish due to the cold temperature | |
| Sep 1, 2015 at 18:24 | comment | added | Need 2 no | I don't think the dish really violates the 2nd law because eventually it does reach ambient room temperature. This is a transitory state that lasts about 10 to 20 mins. | |
| Sep 1, 2015 at 18:23 | comment | added | Need 2 no | There is no refrigerator inside :-) It may be some sort of chemical reaction, though like you I can't think of how a dish of this sort could do that. | |
| Sep 1, 2015 at 18:16 | comment | added | Need 2 no | The dish is not resting on a cold surface. Usually it sits on countertop or sometimes on a pad of note paper. Neither surface changes the experience. | |
| Sep 1, 2015 at 18:15 | comment | added | Need 2 no | Thanks to the comments received so far. I'd like to respond to each: The hand temperature is not the issue. This dish is markedly cooler, not just a few degrees and several people have all had the same observation. It feels like a bag of ice had been left in the dish for 10 mins or so | |
| Sep 1, 2015 at 17:39 | comment | added | James | Another possibility is that the dish is wet and there is some evaporative cooling going on to bring it below room temperature. | |
| Sep 1, 2015 at 17:00 | history | answered | Kyle Oman | CC BY-SA 3.0 |