h a l f b a k e r y
The word "How?" springs to mind at this point.
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Watching a ball robot (see link) got me thinking of a self-
jumping ball robot. Starts bouncing, adding energy into each
jump perfectly timed, and then can send itself to hit a wall
and push at it parkour style to reach even higher.
[pashute, Mar 11 2017]
Hebrew: Le Parkour ze metumtam - The parkour is stupid... [pashute, Mar 11 2017]
[Ling, Mar 12 2017]
Also can self-jump, although it isn't intended to jump resonantly/increasingly-higher. [Vernon, Mar 12 2017]
||I'm just trying to work out if a self-jumping ball violates any laws of physics, but I don't think it does.
||Somehow, I'm not sure how, an anno by Ling has been
deleted (by me?). Ling, Could you return it? jutta, if this is
true, perhaps you can add a "Are you sure" to the [delete]
||It's not a self-jumping ball, but rather a self-jumping ball-
robot. Inside the ball, mechanical (Ling's link) or pneumatic
(Vernon's) actions take place according to the computerized
||I can't return it... but it went something like this:
||I had a similar idea, except I explained the mechanism as well, which
works at any angle of rotation. See link.
||Nice link regarding Parkour, [pashute]. By the way, Parkour is one of the many things that I thought I invented (circa 1973), only to learn that other people were doing it as well.