On Tue, 7 Nov 2006 07:47:36 -0500, "Robert11" wrote:

Hello:

Was reading a book on ballistics the other day, and the author was
describing conditions
where a rifle barrel would drop a small amount as a shell was fired.

He used an example that if one held a fly rod rod truly horiz., and gave the
handle a very quick
upward (I think he means backwards; toward ones head) pure rotation, the tip
momentarily goes Downward.

The moment of inertia of the tip (and every other point on the rod) coupled with
the flexibly of the rod would cause the rod to flex when it was rotated, but it
wouldn't cause the tip to go down - that would violate the conservation of
angular momentum AFAIK.
--
Charlie...
http://www.chocphoto.com