When I was in high school (back in the 70s), I tried to set up a pendulum in the gym (Foucault style, big bob, piano wire, burn string to start) and an electronic timer to measure the change in period over 12 hours from the moon's gravitational pull. Didn't succeed, for a variety of reasons, but it was an intriguing project. For instance, at that time I didn't know that the reference oscillator in the counter I was using probably wasn't as stable over time as my pendulum was.
On 1/9/10 7:01 PM, "Hal Murray" <[email protected]> wrote: > > > > Seems pretty ambitious. A reasonable goal would be measuring tides. > http://www.leapsecond.com/hsn2006/ > > > > -- > These are my opinions, not necessarily my employer's. I hate spam. > > > > > _______________________________________________ > 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.
