J. Phil Thien's Projects

Are the metal trash cans less prone to collapse when clogged?
With the "corrugated" shape of the sides that is probably true, but do the corrugations affect the performance by introducing some turbulence?

On the web page http://www.jpthien.com/cy.htm I have two questions aboyt the photos:
1. There appears to be a wing nut in the center of the baffle on the underside. What is that for?
2. The baffle appears to be offset from center on the lid. Is this correct, or is it just a funny camera angle when the photo was taken?