all the best ahmedelshfie. parenting is super tiring especially if you are juggling make applet at home and using free time :)

Based on a rough idea i had some years ago :)
http://www.scribd.com/doc/46322449/Weelookang-Conceptual-Design-ProjectV1 p 11
the real difference today is i can make interactive java applet standing on the giants of Open Source Physics community instead of the conceptual paper i did which is pretty much just struck at the an idea stage.

Thanks to Andrew Duffy for his source original codes
and Fu-Kwun Hwang for this fantastic CoP forum
Paco for Easy Java Simulation
Wolfgang for Open Source Physics !

and many others whom i have not met but have learnt for the source codes and simulation!

Other Ripple Tank Inference Simulation
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2074.0 Interference of two point sources in 3D by Fu-Kwun Hwang