Children love to find out how things work. They can find some impressively creative ways of destroying their toys as they carry out high energy physics experiments on them.
We can let them play with this program instead of asking them to stop breaking their toys. They are sure to love it – and it we will save us some toy replacement money.
It is named Phun 2D Physics Sandbox and is available for Windows Vista, XP and earlier, and also for Mac and Linux. Check out the download page to find a version that fits your computer.
source > http://www.quranclub.net/2009/11/let-your-kids-have-phun-with-physics.html