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Do birds ever collide? If not, why not?

Peter White, Cardiff, UK

Editorial status: In magazine.

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Categories: Animals, Unanswered.

Tags: flight, flying, bird, collision.

 

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What will happen if two spinning objects collide?

Is this any different from two non-spinning objects colliding? For example take two spheres (made of eg. wood) x -> 1kg and y -> 2kg spinning with 100rpm and 200rpm respectively. Is there any other factors involved? A way to think about it may be to visualise two spinning tops colliding vs two spheres. By the way, how will friction be involved, and what will happen if this is done in a vacuum?
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Last edited on: 2009-12-28 01:14:11

Categories: Our universe.

Tags: physics, Momentum, Spinning, Collisions.

 

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