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 <[email protected]> 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... > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
