Wednesday, June 4, 2008 9:03:25 PM
Rapid sublimation is fun. =] CO2(s) is so cold, if you drop a good chunk of it in boiling water, little pieces of water ice form near the dry ice after a few minutes, and the water is cold to the touch, even when left on a hot plate. Oh, and a _lot_ of CO2(g) is formed. Thus increasing the partial pressure of CO2 in the bottle, causing it to explode. And yes, it is technically an explosion, since there is a sudden outward force in all directions.
Now, that cinder block had 2 holes, but they only used one water bottle... >=D
-Stand Back! I'm going to try SCIENCE!- Reminds me of xkcd. 9.9
Wednesday, June 4, 2008 2:36:38 AM
If you ever get your hands on some dry ice, try pressing a coin against it and listen to it scream. Don't do it for too long or you`ll get a nice, inverted-coin burn scar on your fingers.