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Reply	petethebloke says: If it touched another perfect sphere, then, in theory, the contact occurs at a point. If you wanted to measure, say, the area in contact with water when the sphere was partially immersed then you'd be able to use maths to calculate the proportion of the area wetted (but I can't remember it all off the top of my head - so you'll have to look it up if that's what you meant).  (no votes) Tags: physics, Surface, contact, sphere, area.
	posted on 2010-09-06 11:54:25 | Report abuse

Reply	bovinium says: What I meant was, a perfect sphere touching a solid object, that couldn't be affected.    (no votes) Tags: physics, Surface, contact, sphere, area.
	posted on 2010-09-13 17:40:03 | Report abuse