v1 released --> http://scratch.mit.edu/projects/20975166/ Interactive Spring Physics - Watch those shapes ping about on the virtual conveyor belt across the bottom and up the right hand side of the screen, or grab a shapes corner by holding down the left mouse button over one :) You've probably seen these before on Scratch (Sometimes called Elastic Physics?)... I first wrote one around 14 years ago in Turbo Pascal *grin* - Crazy huh! This is just a quick test to make sure things work fast enough in Scratch. I wanted to add collision detection, that was the aim, but I'm not feeling confident that Scratch can handle the math fast enough.