On 10:10 AM 6/03/2001 +1100, John Haddy said:
>By definition, 1 inch = 25.4mm exactly. This was standardised
>some decades ago.
>
>It's when rounded numbers are used that problems occur.
>
>Cheers,
>
>John Haddy
Off topic a little...
But the metre (and hence inch) are derived quantities (variables) so all
our footprints are totally useless! Do you hear - *useless*!
The speed of light, c, is constant. Any improvements in the how fast light
travels does not affect the number in metres per second. The length of the
metre is changed instead. So there is no point in trying to design
footprints as the next time a physicist improves the estimate of c we have
to go back and update all out libraries.
I'm giving up and going to the beach....
Ian
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