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Just how rare is true blue quartz?
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one fish, two fish, orange fish, blue fish...
Started by kdlynnBoard Plant Sciences, Zoology & Evolution |
Replies: 12 Views: 11686 |
17/09/2007 16:52:47 by WylieE |
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How do we know that the "laws" of physics are really laws, i.e. true everywhere?
Started by rainwildmanBoard Physics, Astronomy & Cosmology |
Replies: 32 Views: 35107 |
27/04/2008 11:14:42 by bitistoll |
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Is true North the same as Magnetic North?
Started by Karen W.Board Physics, Astronomy & Cosmology |
Replies: 10 Views: 13925 |
19/02/2008 18:45:30 by lyner |
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How do true north and magnetic north differ?
Started by katieHaylorBoard The Environment |
Replies: 4 Views: 4873 |
04/02/2021 21:41:59 by evan_au |
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Is it true that irrigation of the colon "has never been clinically useful"?
Started by Nika2003Board Physiology & Medicine |
Replies: 1 Views: 3969 |
25/08/2018 20:53:27 by chris |