From: invalid@invalid.invalid   
      
   "Liz Tuddenham"  wrote in message   
   news:1rmgdu2.kq9ug246pz0gN%liz@poppyrecords.invalid.invalid...   
   > Edward Rawde  wrote:   
   >   
   > [...]   
   >> What volume of material remains after a six inch long hole, centred on a   
   >> diameter, is drilled through a sphere?   
   >   
   > If the hole diameter can be regarded as small compared with the sphere   
   > diameter, the curvature at the ends can be neglected .  The calculation   
   > method will depend on the relative dimensions and the degree of accuracy   
   > required, so that should sort out the engineers from the theoretical   
   > mathematicians.   
   >   
   > It is also possible to get a negative answer if the hole is bigger than   
   > the sphere - which should sort out the accountants.   
      
   If the sphere is as big as the earth then you'll find plenty of people who   
   don't get   
   how you could theoretically drill a six inch long hole through it and  still   
   be left   
   with the same volume as for any other sphere bigger than six inches in   
   diameter.   
      
   >   
   >   
   > --   
   > ~ Liz Tuddenham ~   
   > (Remove the ".invalid"s and add ".co.uk" to reply)   
   > www.poppyrecords.co.uk   
      
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