Resonance explanation and demo for forced resonance graph
Channel: Open Source Physics Singapore / Tracker / TagUI
Date: 2014-06-17

Http://iwant2study.org/lookangejss
An ejss model made using easy java simulation.
Licensed Creative Commons attribution 
Free for redistribution and reuse.
Equipment 
Ipad2 personal
Ejss reader app free
Screen recorder on cydia.
My free time at home