Dear Chris, I believe IATA prohibits the carriage of any quantity of rubidium on passenger aircraft. You have to complete a "Dangerous Goods Declaration" and it then has to go by cargo aircraft.
Cheers Michael On Wed, Mar 22, 2017 at 1:12 PM, Chris Albertson <albertson.ch...@gmail.com> wrote: > "flight" there is the word. Why drive up a mountain? Take the clock > with you inside the pressurized cabin of a commercial airliner next time > you are on one of those 10 hour trans=pacific flights. You be taller then > any mountain and it is actually cheaper then a weather balloon. > > Can you get a Rb clock past the TSA x-ray machine. Maybe if you ask > first. There must be a way to hand cary specialized equipment. > > > > On Tue, Mar 21, 2017 at 7:03 PM, Tom Van Baak <t...@leapsecond.com> wrote: > >> >> But attached is one of the first plots where I put a SA.32m in a home-brew >> vacuum chamber and pulled down to a few inches of Hg for a few hours to >> simulate the low pressure of a flight up to 50 or 90,000 ft. For a high >> altitude relativity experiment -- where you'd like your clock to remain >> stable to parts in e-13 and not accumulate too many stray ns -- it's not a >> good sign when your clock changes by 2e-11 (that's more than 1 ns per >> minute) just because of ambient pressure changes. >> > -- > > Chris Albertson > Redondo Beach, California > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
