Re: ATM 2 Piece Poles - and how trusses really work

[IAPDK@ADMIN.DRAKE.EDU]

>First, a truss, by definition, has all members under tension and
>compression...and *only* tension and compression.  No bending/moments
>are acting on any members.  (At least in the ideal model/concept.)

An interesting example using a folding carpenter's rule is at:
http://www.astro-electronic.de/reise.htm

Makes you wonder why we don't just use flat alumninum bar instead of tube.

Paul Kline