Fw: structural Engineering STUNNING!!! [SEC=UNCLASSIFIED]

["Williams, Roger" <>]

I was sent this email ,thought that COG members might like to see it. Sorry about the size.

             Roger Williams

 

 

 

 

Not to detract from the sheer magic of it, but in practical terms, how M A NY trips would a bird have to make with that tiny little quantity of mud/clay it could carry? (and how far from the nest is the source?)
If you take the construction of a “circular bowl” in your stride as instinctive – how the heck does the bird come up with the windbreak/entrance design that shields the eggs/chicks from the elements – and at what point in fashioning the bowl do they start to construct it?
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Structural engineer in action.