[ARC5] WWII and 24.5 GHZ?

[J. Forster]

There was quite a bit going on at the MIT Rad Lab and other places. It's
outlined in Buderi's book 'The Invention that Changed the World" Among others,
Dr. Edward Purcell, NL, was working in the area. It's also in the Rad Lab books,
as I remember. The discoveries of atmospheic and water absorbtion which caused
problems with radar sets led Purcell to the NMR and 21 cm Hydrogen line
discoveries, the former got him the Nobel Prize. Some ex-Rad Lab waveguide
hardware was used in the Harvard Physics labs unitl maybe 5 years ago, and maybe
is still there.

-John



David Stinson wrote:

> I just received an Aircraft Radio Corp. catalog from January 1946.
> They were selling their extra parts from
> Command Set and other Defense contracts.
>
> They also listed microwave stuff at 23.5 to 24.5 GHZ
> including freq meters, attenuators and many wavegides.
>
> I wasn't aware that we were doing anything serious
> at 24.5 GHZ in 1945.  Can someone elaborate?
>
> 73 Dave S.
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