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The weapon Larry Niven called the 'Tasp' - a ranged energy device which subdues the target by overloading their neural pleasure centre. Basically, an orgasm gun.I did create it, or something similar, in my head, after seeing a science experiment film about rats crossing a platform that delivered electric shocks to get to a switch that would stimulate their pleasure centers, that same platform remained uncrossed for a lesser luxury like food. Some years later I discovered that Larry Niven already blazed that trail while I was still in diapers. Of course, so did Woody Allen in Sleeper, and Dan Simmons in Carrion Comfort. And I'm sure about a billion others. But I didn't know that when I thought of it. :(
my idea just kept the badge that at the centre of the wheel stationary
Vespers
Bus and large truck wheels do this.