19Nov2009
25 added the input text field for checking of understanding by the students thx to Prof Hwang expert guidance http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=1309.0

Another level of interaction for advancing learning made possible by amazing Web 2.0 collaboration between Prof Hwang n lookang ;D

The new improved java applet is always on the top post.
Enjoy!