Got a UV sensitive galileo thermometer for xmas..
IT's one of those glass tubes filled with water and floating glass globules. Lowest floating glass bulb tells the temperature or something.
One of those "you SHOULDNT have, really" gifts.
But my first thought was: wow wonder if I could get this in a case for telling the internal temps.
Here's a pict of what it looks like:
Galileo Thermometer
Any ideas?