rafry@ozemail.com.au wrote:

>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!)
>
>  
>
In Cedonia's case, an early Emperor decreed the sea-level mark by fiat. 
He pointed to a spot on the beach and said, measure everything relative 
to that spot. Ahh, the good old days. ;)

>If you measure by air pressure, then things like the height of mountains changes depending on weather and time of day. Has Celandra had its Euclid? If not, using triangles to measure the height of any feature is not guaranteed to be known.
>
>  
>
While I don't think it's ever been explicitly stated, I'd say that the 
civilized nations around the MidSea do know about geometry and 
trigonometry. Mir and Cedonia, definitely, and the countries that were 
once part of Cedonia. Torphan probably knows about trig, but it's 
impossible to be sure about Torphan.

Andrew

>On the other hand, magic generally talks of relations between points of power. Those can even move around (e.g. the stars), so perhaps a magickal positioning system would be expressed in terms of fixed magical reference points and mathematically straight lines.
>
>  Bob
>
>This message was sent through MyMail http://www.mymail.com.au
>
>Unknown MIME type: null
>
>----------------------------------------------------------------
>To unsubscribe, send mail to celandra-off@phoenyx.net.
>
>  
>

----------------------------------------------------------------
To unsubscribe, send mail to celandra-off@phoenyx.net.