1. Standard memberXanthosNZ
    Cancerous Bus Crash
    p^2.sin(phi)
    Joined
    06 Sep '04
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    25076
    08 Nov '06 00:10
    Originally posted by Ian68
    Here is an explanation of Archimedes' principle designed for children:

    http://www.factmonster.com/ce6/sci/A0804583.html

    Maybe you will be able to understand it.
    LOL
  2. Joined
    18 Jul '06
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    23612
    08 Nov '06 00:16
    Nice one sugie, that's 2 wrong from 2.
  3. Joined
    21 Dec '05
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    46643
    08 Nov '06 08:00
    Originally posted by Marsan
    Nice one sugie, that's 2 wrong from 2.
    No, 1 out of 2.

    The water level goes down - I realised that, driving to work.

    I can admit when I'm wrong - how about you?
  4. Joined
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    1163
    08 Nov '06 18:25
    What if the rock was huge but hollow..

    Now the rock has only displaced it's wieght volume not it's mass volume and now the water would have to raise in level in accordance with the extra displacement of size....

    so it depends on whether or not the rock is hollow or very light
  5. Joined
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    35068
    08 Nov '06 18:36
    Originally posted by iraqi insurgent
    What if the rock was huge but hollow..

    Now the rock has only displaced it's wieght volume not it's mass volume and now the water would have to raise in level in accordance with the extra displacement of size....

    so it depends on whether or not the rock is hollow or very light
    That is almost a good point...

    ...which is why in the question I stated that the rock sinks to the bottom of the pool. If it was less dense than the water, it would of course have floated.
  6. Joined
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    1163
    08 Nov '06 19:08
    mtthw,

    your right you did and i apologise for the lazy reading of your original post,

    and again your right it was almost a good point, however if the rock was large and its hollow centre small the mass of the rock would still sink it (many ships cannon balls were hollow and all sank)

    the pool level would still rise equally to the volume of the undisplaced hollow
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