I'm only a year late on this...
Transparent aluminum.
In the movie Star Trek IV: The Voyage Home, Scotty teaches a 20th century human how to make a substance called transparent aluminum, which is several times harder than glass.
Now, apparently, we've done it.
1 comment:
I thought Scotty taught them to make glass stronger than steel.
btw, How does he know that guy didn't invent it?
William
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