Perform These STARTLING STUNTS with DRY ICE


by DALE R. VAN HORN
Dry ice, which might be called frozen carbon dioxide, lends itself to the performance of some mysterious and startling stunts. As told in this article, it will fire off a toy cannon, propel a model boat, make a spoon squeal like an assassinated pig, and cause a rubber band to writhe as in a terrible spasm of pain.
DRY ICE, or carbon dioxide in solid form, is an exceedingly interesting substance. We know it best as the gas that adds sparkle to our drug fountain drinks. But as a solid, it's something else again, unique in several ways. For instance, carbon dioxide cannot exist as a liquid at normal atmospheric temperatures. It must be either a gas or solid. Only at temperatures below 31 degrees Centigrade can it exist as a liquid.