Posted by RRC on December 13, 2005
In Reply to: Here on planet Earth? posted by Bob on December 13, 2005
: : Colder than a witches tit.
: : When the temperature falls low enough to freeze mercury in the bulb or tit of a weather witch or what is commonly known as a mercury thermomoter it is said
: : to be as cold as a witches tit.
: Exactly how cold would that be?
The melting point of mercury is -38.83 °C (-37.89 °F). While that's not an unheard of temperature, I'm sure most of us would agree that it was indeed colder than a witch's tit long before that. RRC