The first set of values that you list (the ones in kilometers) is much more accurate than the second. The second set of values was rounded off signifivantly, perhaps to make the number of [equatorial miles] come out to a nice round 1000 miles per time zone.
Jim On Sunday 23 December 2001 09:48, M R wrote: > According to this website > http://http.hq.eso.org/outreach/spec-prog/aol/market/collaboration/er >athostenes/ > > the circumference of the earth is > 40,090 km in equatorial (radius is 6378 km) & > 39,958 km in polar (radius is 6357 km). > > But this website says > http://rainbow.ldeo.columbia.edu/courses/v1001/fermi.html > > it is 24,000 miles (which is 38,400 km) and they claim > that each time zone has 1,000 miles. > > Which 1 is correct. > > Madan > > > > > __________________________________________________ > Do You Yahoo!? > Send your FREE holiday greetings online! > http://greetings.yahoo.com -- James R. Frysinger University/College of Charleston 10 Captiva Row Dept. of Physics and Astronomy Charleston, SC 29407 66 George Street 843.225.0805 Charleston, SC 29424 http://www.cofc.edu/~frysingj [EMAIL PROTECTED] Cert. Adv. Metrication Specialist 843.953.7644
