simulation of colliding objects with gravity
This is a fine example of Etoys, one that the ed team should consider for featuring. More description is needed though.
very cool. just don't play with the gravity!
hypnotic and aesthetically satisfying as well as instructive.
I like how it runs automatically. This makes it quite self-explanatory, not needing instruction. I like how you can manipulate the gravity.
I had fun moving the objects and the spinner around. I wanted to make the balls bouncier, as they quickly died and laid on the bottom of the bounding box. I clicked the down arrow on the friction spinner. Default went from 0.02 to -0.98 at which point the world freaked out and I think the app hung. As an aside, it seems that "freaky behavior" is the norm for many etoys project with a spinner to control some numeric. Is there a problem with the control?
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