From the Oxford University Press's blog, "Nine Words You Might Think Came from Science but
Which Are Really from Science Fiction."
4. Deep space. One of the other defining features of outer space is its essential emptiness. In science fiction, this phrase most commonly refers to a region of empty space between stars or that is remote from the home world. E. E. "Doc" Smith seems to have coined this phrase in 1934. The more common use in the sciences refers to the region of space outside of the Earth's atmosphere.
5. Ion drive. An ion drive is a type of spaceship engine that creates propulsion by emitting charged particles in the direction opposite of the one you want to travel. The earliest citation in Brave New Words is again from Jack Williamson ("The Equalizer", 1947). A number of spacecraft have used this technology, beginning in the 1970s.
6. Pressure suit. A suit that maintains a stable pressure around its occupant; useful in both space exploration and high-altitude flights. This is another one from the fertile mind of E. E. Smith. Curiously, his pressure suits were furred, an innovation not, alas, replicated by NASA.
7. Virus. Computer virus, that is. Dave Gerrold (of "The Trouble With Tribbles" fame) was apparently the first to make the verbal analogy between biological viruses and self-replicating computer programs, in his 1972 story "When Harlie Was One."
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