Water, water everywhere.

Derek gives us a two-fer:


Water on the Moon?
I remember hearing about a probe being crashed into the moon. That's not too surprising, a bunch of probes have done that. The one Derek is talking about made contact back in 2009.


Does Hot Water Freeze Faster Than Cold Water?
This is one I've kind of wondered about. The rate at which is heat is transferred between two objects is directly proportional to the difference in their temperature, so a hot object should cool down faster because the difference in temperature is greater. Well, it's greater until it isn't, then it's the same temperature. And since the cooler object has a head start, it's hard to see how the warmer object could ever catch up.