|
Some other stuff:
Heavy water is poisonous when taken in large quantities, but not in a cupful.
Think how our world would be constructed if ordinary ice sank. This is another facet of the Goldilocks Enigma - "Why is the Universe so right (locally) for us to be here?"
I'm a devotee of that school which says we shouldn't be all surprised that it is, because if it was not, we would not be here to wonder at it. The Cosmos was first, we were second by a long way.
Cheers
|