On Sat, Jul 20, 2013, at 06:09 AM, Belli Button wrote:
> >   If you wound the tape onto a single spool, it would be 13 feet in
> diameter and weigh about 700 lbs.
> 
> How do you calculate the diameter of the spool?
> 

Number of bytes divided by bytes per inch gives
length of tape.  Length of tape times thickness of
tape gives the area of the tape as viewed from the
side.
(10 bytes per inch, and 0.1mm thick, from the
Wikipedia article on paper tape.)

The area viewed from the side is the same no
matter what shape the tape is in.  So I calculated
the diameter of a circle with the same area.

-- 
  John Kasunich
  jmkasun...@fastmail.fm

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