Here's a look at materials of the future.
dead pumper 10-27-2009
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www.forbes.com/forbes/2009/1102/revolutionaries-engineer-victor-li-self-healing-concrete.html

Coming soon:  concrete that is bendable and heals its own cracks.

 
Justapumper 10-28-2009
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 Uh huh! I have a feeling this will not end well.