Interested if anyone wants to do Eratosthenes' experiment with me. I'm at Longitude 111.85423 (Chandler, AZ), so people in Flagstaff, AZ, Salt Lake City, UT, Helena, MT, Idaho Falls, ID, Richfield, UT, Loreto, Mexico, Baja California del Sur, Mexico, and lots of other places would be welcome. Looking at 6/21 at noon. lol. Lemme know.