funny pic thread

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It looks like there is a stiff spring near the base, allowing the return...
except that if it was a spring you would expect a more linear behavior in his decent - instead the behavior mimics that of a plastic hinge once the all important P-delta effects take over.

Plus with the depth of section it would have to be quite a spring.

Never mind that a hollow section probably wouldn't hinge anyway......

Wow -- we really are engineer geeks, aren't we? I was thinking something similar when I saw it...
indeed

 
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