2001-09-12
Also, the buildings height is/was 400 m.
John
P.S. I don't think they will rebuild. The area will most likely be turned
into a memorial. And if they do rebuild, most likely they won't build
something that sticks out so high and draws attention to itself as this one
did.
John
----- Original Message -----
From: "James Wentworth" <[EMAIL PROTECTED]>
To: "U.S. Metric Association" <[EMAIL PROTECTED]>
Sent: Wednesday, 2001-09-12 22:13
Subject: [USMA:15234] The World Trade Center and SI (Re: RE: Condolences -
Preach tolerance)
> Madan (M R <[EMAIL PROTECTED]>) wrote:
>
> <Hope the new World Trade Center will be in 100 % SI. Currently I am
> vacationing in India.>
>
> It's interesting that you should mention SI in connection with the World
> Trade Center. The destroyed buildings *may* have been designed to metric
> specifications. During the first day's coverage, ABC News interviewed a
> structural engineer to find out why the towers collapsed. During the
course
> of the engineer's explanation (the extremely hot jet fuel-fed fires
weakened
> the steel walls, thus allowing the attached floors to break away and fall
> atop one another like dominoes), he mentioned that the external vertical
> beams were spaced 39 inches (1 meter?) apart, much closer than in other
> buildings. He said that this close spacing gave the towers plenty of
> redundant load paths to survive the airplane impacts, but that the
softening
> of the steel from the heat did them in.
>
>
>
> Jason
>
>
>
>
>
>
