Solving the Mystery of the Turkey Wishbone Problem

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SUMMARY

The turkey wishbone breaks at a single point due to its non-uniform strength and size. When two individuals pull on either side, the wishbone's material properties dictate that it will fracture at the weakest point once the applied stress exceeds its strength. This phenomenon occurs because any bending stresses are redistributed once the bone breaks, preventing further deformation. To maximize the chances of obtaining the larger piece, one should examine the wishbone beforehand and choose the side that appears thicker and stronger.

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  • Understanding of basic physics principles, specifically stress and strain.
  • Familiarity with material properties and structural integrity concepts.
  • Knowledge of how forces are distributed in physical objects.
  • Basic grasp of the anatomy and structure of avian bones.
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  • Research the physics of material failure and fracture mechanics.
  • Explore the properties of different types of bones in avian species.
  • Learn about stress distribution in non-uniform materials.
  • Investigate techniques for testing material strength and integrity.
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This discussion is beneficial for physics students, material scientists, and anyone interested in the mechanics of physical objects and their structural properties.

kevi555
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Hi,

I was wondering what the physics are behind why a turkey wishbone breaks in just one spot of the bone when one person is pulling from either side of the wishbone trying to break it?

Thanks!
 
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kevi555 said:
Hi,

I was wondering what the physics are behind why a turkey wishbone breaks in just one spot of the bone when one person is pulling from either side of the wishbone trying to break it?

Thanks!

Do you mean why it breaks in one spot rather than two spots?

If so, that happens because the wishbone is not uniform in strength and size. Once the strength of the wishbone is exceeded in one spot, it will break there. Any stresses due to bending will be relieved throughout the rest of the bone once it is in two pieces (it is no longer being bent once it breaks).

If you are asking how you get an advantage to get the big piece of the wishbone, I suppose the most reliable way is to examine the wishbone before trying to break it. Stick with whichever side appears to be thickest/strongest.:biggrin:
 

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