[time-nuts] beryllium oxide

Mike Clapp mike.clapp at gmail.com
Fri Jan 16 15:25:33 EST 2009


James Webb space telescope and Utah Beryllium mine

http://heliophysics.org/headlines/y2008/10dec_mirror.htm


On Fri, Jan 16, 2009 at 3:20 PM, Tom Clifton <kc0vsj at yahoo.com> wrote:

> Also used on old "lighthouse" tubes used for uhf and low microwave
> applications fro the '40's and '50's.  If my memory serves me, these tubes
> were found in devices like the airborne APX-6 IFF Transponder in which the
> greatest hazard was the detonators used to destroy the device should a plane
> go down over enemy teritory...
>
> An instrucor in the 70's made sure we were paranoid about both the berylium
> oxide and explosives...
>
>
>
>
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