Principle of Bicycle/top same as gyroscope?

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Offline raghusesha

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Principle of Bicycle/top same as gyroscope?
« on: 22/08/2010 15:36:50 »
Is the principle of bicycle or top (being more stable when the wheel is rotating or top is rotating) same as the principle of gyroscope?  Or is it something else?

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Offline tommya300

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Principle of Bicycle/top same as gyroscope?
« Reply #1 on: 23/08/2010 00:06:35 »
Is the principle of bicycle or top (being more stable when the wheel is rotating or top is rotating) same as the principle of gyroscope?  Or is it something else?

I always thought it was gyro but I am wrong here.

http://www2.eng.cam.ac.uk/~hemh/gyrobike.htm

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Offline imatfaal

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Principle of Bicycle/top same as gyroscope?
« Reply #2 on: 23/08/2010 17:32:35 »
Cool link - thanks Tommy
There’s no sense in being precise when you don’t even know what you’re talking about.  John Von Neumann

At the surface, we may appear as intellects, helpful people, friendly staff or protectors of the interwebs. Deep down inside, we're all trolls. CaptainPanic @ sf.n

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Offline Geezer

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Principle of Bicycle/top same as gyroscope?
« Reply #3 on: 23/08/2010 18:07:13 »
There ain'ta no sanity clause, and there ain'ta no centrifugal force ćther.

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Offline tommya300

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Principle of Bicycle/top same as gyroscope?
« Reply #4 on: 23/08/2010 18:26:37 »
We beat this one to death last year.

http://www.thenakedscientists.com/forum/index.php?topic=25419.0

This is the shake 'n' bake one, and I helped.   [B)]

I learned from this

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Offline tommya300

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Principle of Bicycle/top same as gyroscope?
« Reply #5 on: 23/08/2010 18:47:45 »
Cool link - thanks Tommy

You are welcome Mat!

I was just wondering if 2 extra wheels  were mounted on each side, equal weight and balanced, axles at the level of the handle bars. Having the axles  offset from the front and back wheels and duplicate  the test spinning the free gyro wheels. But this time  push the bicycle forward with no rider.
Would it exibit some stability?

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Offline imatfaal

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Principle of Bicycle/top same as gyroscope?
« Reply #6 on: 24/08/2010 11:59:23 »
A light bike with fast spinning auxiliary wheels - I could see that working.  Will dredge the memory banks and see if I could do a back of the envelope calc to approximate.

Of Course, would be easier to mount the extra wheels a little bit lower, so they touched the ground; hey presto your bike is stable in all normal circumstances (although it is now a tricycle or quadracycle)

Matthew
« Last Edit: 24/08/2010 12:01:11 by imatfaal »
There’s no sense in being precise when you don’t even know what you’re talking about.  John Von Neumann

At the surface, we may appear as intellects, helpful people, friendly staff or protectors of the interwebs. Deep down inside, we're all trolls. CaptainPanic @ sf.n