[time-nuts] Antique Rubidium Standard

[Geoff Blake]

On 26 April 2012 11:08,  <time-nuts-request at febo.com> wrote:
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Ed Palmer wrote:

> but I don't think pop rivets had been invented when
> they built this thing! :-D

Just as a matter of interest, the humble pop-rivet was first patented
in 1917  by Hamilton Neil Wylie, a Royal Navy Reservist and an
improved version in 1927 when he was working for Armstrong-Whitworth,
then a UK aircraft manufacturer.

I don't think that the Quartz Crystal standard had been invented in 1917........

Geoff

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Geoff Blake,   G8GNZ    JO01fq:   Chelmsford,  Essex,  UK
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Using Linux: Ubuntu 11.04 on Intel or Debian on UltraSparc
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