James Doohan, DeForest Kelley, and Alex Henteloff in Star Trek IV: The Voyage Home (1986)
Scotty helps Dr. Nichols "invent" transparent aluminium, which, in real life, became possible 23 years later in 2009.
Which idea of fictive materials or chemicals is the most fascinating? (The name of the materials or chemicals are marked in bold)
Tell us here.