Can hot water freeze faster than cold water?
I think the simplist explanation is the best. Water is one of those non-typical substances where the solid state is less dense than the liquid state. Also, hot water is less dense than cold/cool water. Therefore, hot water has an easier time of attaining that lower density frozen state.
My teacher when I was 10 told me this and I have been fighting with people ever since about it as I believed him but had no way to explain the quirk adequately. He said if there is a crack in a skating rink it is better to pour hot water on it than cold to fill it.
you people actually read all of that?
Didn't mythbusters prove this wrong?
What the fuck? A phenomenon? "Why hasn't modern science answered this seemingly simple question about cooling water?"
Are you fucking kidding me? Are you a retard? We learned the why and how in high school chemistry.
I love how scientists fight about quantum physics, dark matter, and other untestable fantasies. They still haven't figured out the changing states of water!!! Doing Science on water is actually observable, cheap, and might just have some practical use!
Great explanation of a phenomenon many people don't understand.
I can't say I've heard this before, but it just sounds so familiar...
take a thermo class, it's called enthalpy
Mhh! I din't even know that!
I'm so glad nature saves me the trouble of giving people the brain fucks they badly need by pulling stuff like off. Physics owns!
An interesting discussion of the Mpemba effect: the fact that, under certain circumstances, hot water can freeze faster than cold water. This website looks at some of the possible explanations.
this is quite interesting, a good read for sure.
umm...you are are idiots. I'll say it again: ...less and less hope for the human race.
(please pardon the pun)