"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.
