facebook/rebound — pull request #30 by eboudrant (2014-07-10 03:37:12+00:00)
Title: Display tension/friction used in the JS example

It could be useful to quickly configure your spring :

![screen shot 2014-07-09 at 8 35 43 pm](https://cloud.githubusercontent.com/assets/773377/3534191/6c69ef1e-07e3-11e4-98ba-4e4227b680f2.png)