Karl Schwarz Returns!
Over at 9-11 Blogger, Karl opines on galvanic corrosion of the World Trade Center towers:
In 1989 - there were plans to erect scaffolding and disassemble the WTC towers and rebuild them. Cost projection was around $5.6 billion. One of the architects shows up to work one day and the MIB's were there - had confiscated all of the plans, specs, details, etc for WTC. They even confiscated their office cubicles and had tape on the floor outlining where they went.
Reason - the exterior cast aluminum WTC panels had been directly connected to the steel superstructure of the building, thus causing galvanic corrosion. In short, the "life cycle" of the WTC was not 200 - 300 years, more like 30 years or so.
Where does Karl get his ability to opine on matters architectural? Well, it turns out that he's not just an expert on nanotube technology with 500 PhD's on staff (or was it 500 patents?), but a true renaissance man:
I am an architect by the way, quit practicing in 1988.
Well, thank god for small favors.