> -----Original Message-----
> From: IBM Mainframe Discussion List On Behalf Of John S. Giltner, Jr.
>
> [ snip ]
>
> I can't remember the whole thing, but I believe that Grace
> Hopper used to use different rope lengths to show how long,
> or short various measurements of time were: a nano second vs.
> a full second.
Hmmm..... A nanosecond is one billionth of a second, so the "long" rope
would have to be a billion times longer that the "short" one. Given
that the SI definition of a metre is approximately one ten-millionth
the distance from a pole to the equator along a meridian, if the "short"
rope was only one millimetre long, the "long" one would have to be a
thousand kilometres long. That would make a pretty big "pile" of
rope.........
-jc-
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