[quote author=Fu-Kwun Hwang link=topic=2340.msg8777#msg8777 date=1322320309]
There are more than 40 different optics related applet at the [url=http://www.phy.ntnu.edu.tw/ntnujava/index.php?board=12.0]optics[/url] board.

I do not understand why you said nothing was there.
[/quote]


I know it dear

And I searched all the internet sites... :D but nothing useful

May I ask you to build it for me?