Terry Simpson wrote in USMA 26370:
James Wentworth wrote:
Even US road signs use grads (Ex. "7% Grade"
No. A grad is not a grade. A grade is the rise in height divided by the road
distance travelled expressed as a percentage. A 100% grade = 45 degrees.
Le Petit Robert, dictionaire de la langue fran�aise, gives among the
meanings of
*grade* "2� Geom. (1803), Centi�me partie d'un quadrant dans un
syst�me de graduation cent�simale de la circonf�rence. Le grade (gr)
quatre-centi�me partie de la circonf�rence, Sous-multiples du grade:
d�cigtrade, centigrade, milligrade"
--
Joseph B. Reid
17 Glebe Road West
Toronto M5P 1C8 Telephone 416-486-6071
