[quote author=yasmine link=topic=52.msg1848#msg1848 date=1192719948]
thank u for ur great Information and ur helps ,so if u know good site for measurment I should be grateful :D
[/quote]

measurements?

well, i have been posting in my own forum, all the good resources i come across :)
key in a search "measurements"
[img]http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=52.0;attach=272[/img]
http://66.7.205.91/~lookangc/index.php?topic=29.msg1466#msg1466

you can find vectors, Vectors Addition, many interactive learning tools i found all over the net.

need to register to view ! :(