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Author Topic: Are there Wheels in Nature?  (Read 7564 times)

Offline _Stefan_

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Are there Wheels in Nature?
« on: 19/05/2007 13:05:32 »
Are there wheels in nature? Or are humans the first to invent/develop them?


 

another_someone

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Are there Wheels in Nature?
« Reply #1 on: 19/05/2007 14:02:48 »
How do you define a wheel?

There are ball and socket joints which are capable of rotation, but are prohibited from continues rotation by the attached muscles.

There are things in the natural world that do continuously rotate.

The big invention for humans was not really the wheel, but the axle (i.e. a way of harnessing a continuously rotating object to a stationary object - although nature does use axles for components that can rotate in a non-continuos manner).
 

Offline JimBob

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Are there Wheels in Nature?
« Reply #2 on: 19/05/2007 21:36:26 »
There are some lizards that bite their tail and roll down-hill when threatened. They are in a sort of circle so they may be considered a wheel. Any other examples, people?
 

Offline lightarrow

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Are there Wheels in Nature?
« Reply #3 on: 20/05/2007 10:56:09 »
Are there wheels in nature? Or are humans the first to invent/develop them?
What about Saturn's rings?
 

Offline Soul Surfer

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Are there Wheels in Nature?
« Reply #4 on: 21/05/2007 09:23:21 »
Nature could not "invent" the wheel because of the severe problems of ensuring a blood and nervous supply to a rotating object that can perform an undefined number of turns in the same direction the best you can get are ball and socket joints like hips and eyeballs.
 

Offline Carol-A

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Are there Wheels in Nature?
« Reply #5 on: 21/05/2007 12:18:12 »
If you look at the structure of the ATPase,(mitochondria and chloroplasts) it is a rotating wheel on a "shaft", that rotates in 1 direction for a long time... ;D
 

Offline RD

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Are there Wheels in Nature?
« Reply #6 on: 25/05/2007 17:53:39 »
There are some lizards that bite their tail and roll down-hill when threatened.
 They are in a sort of circle so they may be considered a wheel.
 Any other examples, people?

What about Tumbleweed ?
« Last Edit: 25/05/2007 18:38:06 by RD »
 

The Naked Scientists Forum

Are there Wheels in Nature?
« Reply #6 on: 25/05/2007 17:53:39 »

 

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