Wuwei
Gold Member
- Apr 18, 2015
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Right. No need to do an experiment. I misspoke. I meant to say the bold faced changes:no it won't it will cool faster. the ice cube will cause the heat from the coffee to emit more heat flows to cold. the colder the quicker it cools. you should read up. Darwin's law or something.
I will do the experiment tonight. It is easy to confirm.
Hot coffee in a room at room temperature will cool. Hot coffee in the same room but with ice cubes close by will cool faster. Hot coffee surrounded by even more ice cubes will cool even faster. That is the effect of radiating ice cubes.
The radiating ice cubes block the room temperature emissions at 400 W/m² and replace them with even lower emissions from the ice cubes at 300 W/m².