Old business first: Yes, as many of you surmised, it was #1. And, no I can't explain the belly button thing either.
New business: I love chicken pot pies. Who doesn't, right? But the weirdest thing happened yesterday. Nea, my friendly FedEx guy showed up at the front door with a big ol' box and inside were two frozen pot pies (yay!) from an outfit in Chicago. No note or anything so I don't know who to thank but just in case it was you, thanks!
The pot pies were packed in dry ice. I should have remembered something about that from high school science class, right? I didn't, so I touched it with my bare hand and froze/burned it in a bad way. Ouch.
What is this mysterious thing called dry ice? Is it from outer space? Here are some fun facts, courtesy of the sometimes reliable Wikipedia.
In 1835 the French chemist Charles Thilorier published the first account of dry ice. Upon opening the lid of a large cylinder containing liquid carbon dioxide he noted much of the carbon dioxide rapidly evaporated leaving solid dry ice in the container.
In medicine it is used to freeze warts to make removal easier .
In the construction industry it is used to loosen floor tiles by shrinking and cracking them, as well as to freeze water in valveless pipes to allow repair.
Dry ice can also be used for making ice cream.
It can be used to carbonate water and other liquids such as beer.
It can be used as bait to trap mosquitoes and other insects
It is also used in cloud seeding: the process of altering cloud precipitation.
One of the largest alternative uses of dry ice is blast cleaning. Dry ice pellets are shot out of a nozzle with compressed air. This can remove residues from industrial equipment, such as ink, glue, oil, paint, mold and rubber. Dry ice blasting can replace sandblasting, steam blasting, water blasting or solvent blasting.
When dry ice is placed in water sublimation is accelerated, and low-sinking dense clouds of fog are created. This is used in fog machines, at theaters, discotheques and nightclubs for dramatic effects, and at Halloween.