Good series starting tonight on bbc4. About the science of temperature. I never considered that the freezing point of iron is 1500 degrees C. And that rock is actually frozen. Interesting stuff.
I had not noticed that program. I have just watched part of it on Iplayer and it is very interesting. To save others having to search for it it is on BBC4. It is repeated on Sunday 18th at 02:35 in the morning and at 11:50 at night.