Rough draft of article on physics. No examples yet.
physics: lotsa wording fixes from Rebecca
Working buttons example.

It doesn't really prove the point I wanted to make, so I'm going to need to revise the text. I think I want to add some presets for the spring configuration, too.
Add a control panel.
physics: add windows 8 lock screen example.

Pretty sure I need to come up with something else for those buttons :(.
Add start of Android wear example.

CSS version almost works, just need to calculate escape velocity. Need physics model for spring one. Need to add controls with reset button.
physics: finish android wear example