Sirius wrote:Being pedantic, to hit the triple point you'd need to be living at an altitude of roughly 21 miles above sea level...
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
Oops. I looked it up. I've been using the wrong term. Sorry Sirius. What I meant to say is when water is just at or near freezing, around 32F, there can be a film of liquid water overlying the ice layer underneath. We seem to get conditions like that quite a lot. It will freeze solid at night, then during the day, it will warm up and create a layer of water on top of the ice. Nice and slippery.
Ferno, the guy couldn't get up the hill, so he slid backwards into the curb and parked it. He had time to get out before the car started sliding. Maybe when he slammed his door, that was enough impetus to get it moving. Once it got going, it was hard to get stopped. I remember it was almost impossible to even
walk on concrete that day without slipping.
sigma, one night I was driving back down to college. It was right at freezing, but it was raining. I should've taken a clue and stayed off the roads. I got about 15 miles from home, going 40 miles and hour, when all of a sudden, the road noise changed from wet sounding, to a very
quiet bone dry. It wasn't
dry however, but a solid sheet of ice. It was also on hilly a curve that had been in the shade all day too. So before I even had time to say "Oh sh*t!", my car was spinning in circles, with headlights from the cars behind me glaring in my eyes. Fortunately, I didn't slide over the steep embankment and into some farmer's field. I did hit the hill on the other side however, but thankfully, it didn't damage my car. So after that little thrill for one night, I turned the hell around and went back home before the rest of the roads froze over. It turned out to be one of the WORST ice storms in Portland's history. I should have stayed home that night.
![Rolling Eyes :roll:](./images/smilies/icon_rolleyes.gif)