Ejs Open Source Vertical Spring Mass Model Java Applet by lookang
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=349.0 by prof hwang!

as requested here http://weelookang.blogspot.sg/2013/02/ict-tools-on-physics-invited-by-prof.html

/htdocs/ntnujava/ejsuser/14019/users/sgeducation/lookang/verticalspringwee_pkg/verticalspringwee.propertiesFull screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
Download EJS jar file(1035.2kB):double click downloaded file to run it. (8 times by 6 users) , Download EJS source View EJS source