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Re: Barrel Stuck to Top Joint

Author: BartHx
Date: 2014-12-20 21:50

Thought experiment:
Start with a solid piece of wood and mark the center point. Imagine what would happen if you were to heat that piece of wood. If we can agree that the outside dimensions would increase because it would expand, than we would have to agree that all points throughout that piece of wood would have to be moving outward from the center point to accomplish that (otherwise, the wood would be tearing itself apart). While warm, cut a hole that would remove the center point. Now, cool the wood and we would expect all points to reverse direction and move back toward the center point making the hole smaller. Warm it up again and the points again move away from the center point making the hole larger. Cool it off again and the points again move toward the center point making the hole smaller. If the hole were to get smaller on heating, it would require that the wood fibers around the margin of the hole be squeezed into a smaller space while the rest of the wood would be expanding. The alternate crushing and relaxing of the fibers around the margin of the hole would soon have them crumbling into dust. While the coefficient of thermal expansion for wood is small, it still has to follow the basic rules of physics. An altered frame of reference can cause an apparent change in the laws of physics (eg. Einstein's work with relativity). However, so long as we are all living under "normal" conditions on the surface of the Earth, Newtonian physics holds true.

In addition, consider that all wind instruments (wood or metal) change pitch in the same direction in response to temperature changes.

Post Edited (2014-12-20 21:56)

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Barrel Stuck to Top Joint new

shadow1

2014-12-16 01:45