Re: [ATM] Aluminium or stainless steel?

[Woodchuck <djv@bedford.net>]

On Sun, 8 May 2005, Bob May wrote:

> Putting stuff in the tubing won't really reduce the deflection - that is
> taken care of in the outside diameter of the tubing.

Huh?

Suppose the tubing is made of gum rubber.  I stuff it with a
tight-fitting rod of steel.  Doesn't it become stiffer?

Instead, suppose I plug each end and then fill the tube with something
under pressure, doesn't it become stiffer also?  (V14gra effect,
so to speak).

When a piano string is tightened, does it require more force to deflect it?

Dave

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