In a message dated 7/14/04 4:21:49 PM Mountain Daylight Time, rafry@ozemail.com.au writes: > Regarding elevation, that can be hard to measure. What are you measuring? > Mean sea level is 15 miles further from the center of the Earth at the > Equator than at the poles (I may be off by a factor of two here, in the case > of Earth), and depending on geometry, that could be well under water at high > tide. I'm assuming Celandra knows the world to be round, but that's probably > not even universal. (And given magick, it may not even be universally true!) Well, Exquaestio coordinates are based on the assumption that the world is a perfect sphere, and it won't bother them at all if/when elevations at the equator average 7 miles higher at the equator than in the MidSea. With rites for measurement and calculation they can be as accurate as they want, until a measurement needs to cross a sea expanse. (Of course very few are able to use the calculation rites for trig. functions, but I assumed those calculations were readily available from the Library in Mirabalpur, so at least its possible.) To derive the elevation information they need across an expanse of sea, they require simultaneous measurements of the distance to a particular point on the greater moon's surface. With a scholastics sophistication of Fair (0), they're probably up for it, but its going to take a while to get decent measurements. Jefferson (Exquaestio) http://www.picotech.net/~jeff_wilson63/Exq_Main.html ---------------------------------------------------------------- To unsubscribe, send mail to celandra-off@phoenyx.net.
