[time-nuts] Antique Rubidium Standard

Ed Palmer ed_palmer at sasktel.net
Thu Apr 26 22:47:14 UTC 2012


Wow!  I stand corrected.  I had no idea that they were that old.

Thanks,
Ed


On 4/26/2012 3:20 PM, Geoff Blake wrote:
> 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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