On Thu, Nov 21, 2013 at 11:11 AM, Don Latham <d...@montana.com> wrote: > Lord no, John. No red wagon is needed. Use a pole and the equation of > time, and a good watch or clock. At local noon, a shadow will be a n-s > line.
How accurate do you need to be? The above requires a very tall pole to case a 300 foot long shadow. Then you have to be quick to measure because the Earth turns at .25 degrees per minute. If you need a very tall pole that is 100% vertical then hang a weighted rope from a tall support. Then go to the other end and watch the seconds tick down. A GOOD magnetic compass can do this job too. Easier then finding s 1,000 food tall pole. The better compasses have some kind of optical aid for sighting a line. -- 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.
