Two substances sublimate at room pressure, CO2 and Mothballs (paradichloridebenzene sp?). At higher pressures, also known as the "triple point", other things can sublimate.

Yep. Iodine crystals sublimate with heating. Even at room temperature. When the heating is a bit stronger than room temperature, iodine changes into a beautiful violet-colored gas. But don't breathe any of it. It's quite poisonous.

I didn't read the whole thread. Has anyone called you ignorant yet?

Not until you stomped in here and implied this. Don't you have some flies in need of having their wings removed?

I got nitrogen in my new tires at no charge. From what I understand, they maintain pressure more consistently over a wider temperature range. Having covered 800 miles this week in less than 10 hours behind the wheel, I've definitely noticed a difference.

This morning, I gave it 120%

http://farm3.static.flickr.com/2501/...529ce7349c.jpg

Anyone else want to play?

Usually when someone creates a post in the form of a question, it is assumed that he is ignorant of the answer, so no, nobody else felt the need to state the obvious...until now.

+10! :thumb: Right on! I could always spot a lousy and ignorant teacher in a school. They were the ones who told you how stupid you are for asking a question. Fact of the matter being they didn't know the answer. Rather than saying something to the effect of: "I don't know. Let's find out." they would call you a moron in an intimidating voice and cause the other students to giggle and laugh at you.

I called out a math teacher once. He went berserk and ordered me into the hallway. He told me "I'm gonna beat the sh** out of you for making me look bad!" Then he ordered me to the principal's office. As I started walking away he said: "Stop! You're making me look like a fool!" Then he made a fist and I pulled a knife out of my boot and continued walking - backwards - away from this twit.

Were Dallas and Ponyboy waiting for you after school?