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In response to "Stupid question of the day: Does an icecube weigh more than the liquid water it contains?" by TWuG

answer

Posted by tRuMaN (aka Truman) Jul 28 '10, 07:53

Ice has a density of 0.917 g/cm at 0C, whereas water has a density of 0.9998 g/cm at the same temperature. So at that temperature, at ordinary pressures, a volume of ice weighs less than the same volume of water. However, there are several phases of ice, and at sufficient pressure, some forms of ice are denser than water.

Responses:

You just explained GI Joe. -- nm - Will Hunting Jul 28, 07:56 12
- Now explain the effing jet catching up to the missiles. -- nm - Ender Jul 28, 07:57 11
  - they were moving vertically against the rotation of the earth's hemispheres while simultaneously overtaking the rockets via quantum mechanics -- nm - Beaker Jul 28, 08:00 10
    - 2012? same thing -- nm - Roger More Jul 28, 08:07 1
      - no, that was caused by wind sheer affecting the velocity on one hand and dampening effects caused by earth's rotation on the other -- nm - Beaker Jul 28, 08:10
    - So you're saying a wizard did it? -- nm - Ender Jul 28, 08:02 7
      - pretty much -- nm - Beaker Jul 28, 08:03
      - no, the jet was just going faster -- nm - prayformojo Jul 28, 08:02 5
        
        depends on the jet and missile -- nm - Danedukenuuk Jul 28, 08:06 4
        
        From Moscow to DC in 18 minutes, iirc. -- nm - Will Hunting Jul 28, 08:08 3
        
        thats som g-force rith there - Danedukenuuk Jul 28, 08:14
        
        The jet had a top speed of Mach 6. Moscow-to-DC in 18 minutes is something like Mach 22. -- nm - Ender Jul 28, 08:14 1
        
        4 times SR-71 speed? - Danedukenuuk Jul 28, 08:15
But aren't density and weight different things? Would a volume of water x weigh the same in both - TWuG Jul 28, 07:56

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