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![[Post New]](/templates/default/images/icon_minipost_new.gif) 1 Apr 2008 17:38:09 IST
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R-r/2 is only the radius of the cylinder and not the distance of its centre from the centre of the concentric circles. Distance is R-r/2 + r = R+r/2
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Let us learn to dream, gentlemen, and then perhaps we shall learn the truth.
- August Kekule |
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