Bruce Griffiths wrote: > Poul-Henning Kamp wrote: > >> In message <[email protected]>, Magnus Danielson writes: >> >> >> >>> I have encountered Beryllium in a field none of you mentioned, as >>> material for speaker cones. Light and very rigid. Perfect for the top >>> driver for horns. I recall something about high speed of sound. >>> >>> >> It is also used for mirrors for certain, usually classified, >> applications. >> >> >> > One unclassified application is the 1.12m diameter secondary mirrors of > ESO's 4 VLT telescopes in Chile. > > > Bruce > > _______________________________________________ > 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. > > For additional applications in some classified and unclassified programs:
http://www.mdatechnology.net/techprofile.aspx?id=175 An application for breyllium mirrors at CERN: http://cdsweb.cern.ch/record/944244?ln=no Bruce _______________________________________________ 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.
