What if I touched dry ice?

If you were to touch dry ice, it wouldn't be anything like touching regular frozen ice. So what's it like? Does it feel hot or cold? Is it actually a solid? And would it leave a mark on your skin?

Dry ice actually freezes your skin cells. The resulting injury is very similar to a burn and should be treated with the same medical attention. For the same reason you never want to taste or swallow… » Full Story on HowStuffWorks