Javascript is required to run these simulations. Please Enable

String Physics

Fling strings around the page with your mouse.

P: pause
F: when a piece of rope is selected, this fixes / pins it
D: draw, drag mouse to make new rope

Please note that in the draw mode you can’t join a string with another string, only dangle it off. This is on the to do list. (ie: you can start draging from and existing string, but you can’t join it up with another string).