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am_Unition · 4031 days ago · link · · parent · post: So, What's the word? Have you recently pitched an idea...
Besides weight, safety is also an issue. Our bumpers crumple relatively easy so that the de-acceleration we experience in an accident is gradual, and less of an sharp impulse. Now, if mk's idea of an electromagnet could be implemented selectively for low-velocity collisions, that might be desirable. You'd still have the problem of non-metallic/non-magnetic objects though. Like, errr... people.