If ice did not float it would be a far colder planet.

"dixon" wrote in message
news:3u2kd.76623$R05.15860@attbi_s53...
A physics teacher once asked what would happen if water, when freezing into
ice, became smaller as it got colder like all other materials. At the time
it seemed simple, the ice wouldn't expand so no more cracked engine blocks
and manifolds. Also docks wouldn't be lifted in winter and boats could
probably be left in the water all winter. Other than that, not much change
right? The answer was surprising! What do you think?
Dixon