08-03-2007
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#21 (permalink)
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| Stirrer Of Shit
Join Date: May 2007 Location: Oahu
Posts: 4,208
|  Re: Water is wet?
Quote:
Originally Posted by bns  Now that's weird. I had never heard that before. | Quote: |
The 'triple point' is the combination of pressure (6.1 millibars) and temperature (0.01 °C) at which water can exist simultaneously in all three states: a solid, a liquid and a gas (see the 'phase diagram' below). On Earth, our experience with the triple point is usually limited to ice skating. The temperature of ice on a skating rink is just a fraction of a degree from the triple point. A little bit of pressure on the solid ice can cause it to transform to a liquid. The weight of a skater applied to the ice along the blade of the skate therefore creates a thin layer of liquid water that lubricates the blade and makes gliding possible.
| Making a Splash on Mars |
Eric "For whoever habitually suppresses the truth in the interests of tact will produce a deformity from the womb of his thought." -Sir Basil H. Liddel-Hart "How do you tell a Communist? Well, it's someone who reads Marx and Lenin. And how do you tell an anti-Communist? It's someone who understands Marx and Lenin."—Ronald Reagan
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