This article is not meant to start discussion on 9-11. But I saw this article and it is interesting and worth sharing.

9/11 Research May Yield Super Steel for Fusion

One of America's greatest disasters could yield insight that helps power the future

It was one of America's darkest hours -- a terrorist attack struck on American soil, killing 2,974 people.  It was a tragedy felt worldwide, as 90 countries were represented among those who died.

The most devastating part of the attack in terms of damage was not the impact of the airplanes themselves, but the fires they caused.  The fires burned in the middle stories of the buildings at temperatures of around 500C (932F).  They weakened the steel supports, which eventually collapsed, taking the rest of the building with them, killing many in the top floors.  Part of the mystery was how this occurred -- steel's melting point is much higher. 

Dr Sergei Dudarev, principal scientist at the United Kingdom Atomic Energy Authority (UKAEA) explains, "Steels melt at about 1,150C (2,102F), but lose strength at much lower temperatures.  [The steel] becomes very soft. It is not melting but the effect is the same."

You can read the rest here.

Source (Dailytech.com)

It is interesting to me how something as old as iron working and something not so old as steel can still yield so many mysteries. My only wish is that we could put more money into education and funding of research in this country. 

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