nanoseconds and Grace Hopper (was Re: RIP: Betty Holberton)

From: Ethan Dicks <erd_6502_at_yahoo.com>
Date: Wed Dec 12 15:57:53 2001

--- Dave McGuire <mcguire_at_neurotica.com> wrote:
>
> 12 inches for a thousandth of a second sounds a little off...though
> I'm too lazy to do the math...

It is... by about 10E03... light goes about 30cm in 1 ns, or about 12",
depending on medium (faster as photons in a vacuum than electrons down
an insulated wire).

Somebody wrote:
> > 12 inch copper wire IIRC for MS
> > > > [R. Adm Grace Hopper]... needing a wire a nanosecond (pico?)
> > > > long.
> > >
> > >She used to pass them out in her presentations, Gene. They were
> > >approximately 12" long.
> > > - don

I was supposed to get an official DECUS nanosecond of Etherhose signed
(stamped) by her for making a presentation at a symposium but they never
sent me one.

-ethan



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Received on Wed Dec 12 2001 - 15:57:53 GMT

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