it is going to be the best vernier applet in the whole physics teaching community for the world :)

i am glad to be part of your effort to give free physics learning-by-doing education.

it is correct :) i have number to prove LOL.
[img]http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=567.0;attach=173[/img]