Re: A Long Thin No Stretch No Weight Sagging Film Is Supported By Horizontal Parallel Beams and Filled With a Liquid



Bret Cahill wrote:
The idea was to form trough reflectors with a vacuum on the bottom side
making it circular and a liquid on top to adjust it to something more
parabolic.

If the frame is horizontal, load the film uniformly with a vertical
force and you will get a parabola with a vertical axis.

Dave

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