The Science of Sci-Fi

Our resident film physicist tackles the final frontier and finds some key pointers for our own space travels
Event Horizon: In Event Horizon, the Theory of General Relativity is used to explain how the astronauts travel such great distances. Photo by The Everett Collection

In the world of cinematic science fiction one of the most appealing themes involves a universe brimming over with intelligent life. In this imagined future (or past) humans interact with alien friend and foe because they've at last hammered down the ability to travel to distant stars and galaxies, and, yes, "to boldly go where no man has gone before.” Having grown up on the original Star Trek series, observed the effect of the Star Wars movies on the zeitgeist of movie-going generations and enjoyed sci-fi soap operas like Battlestar Galactica, I have to admit I wish we could make it happen; no matter the odds.

Now, while the laws of physics put severe limitations on whether we could ever travel the vast distances involved in any reasonable period of time, as far as we know physics may not absolutely prohibit the possibility. So, with this in mind, let’s have a brief look at some of our favorite science fiction movies and shows and see how they deal with transporting protagonists through the vastness of space. Because, insofar as it's possible, we one day might employ those same laws of physics to our advantage.

Launch the gallery here.

6 Comments

Comments

nexisnet
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Thanks for taking the time to point out that some Sci-Fi science isn't entirely and blatantly impossible. As to Star Trek's "impossible physics justified by indecipherable techno-jargon," well sure, once you have Heisenberg compensators you can do anything!

-Adam

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singerguy74

from Grand Rapids, MI

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I've been reading Michio Kaku's book "Physics of the Impossible" lately. I'd highly reccommend it. He divides all this far-out techno fantasy into Class I, II, and III impossibilities and, in a VERY approachable way, explains the science behind phasers, force fields, teleporters, time travel, etc. The fun thing about math and physics is that they allow for all kinds of things we simply don't have the technology to create. There's nothing (yet) to say we couldn't travel into the future, for instance, but getting there is another matter.

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c2thamax

from Abington, MA

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Dr. Weir of Event Horizonc must have gor his ideas from "A wrinkle in Time" by Madeleine L'Engle. She called it a tesseract but didn't explain how Meg's father did it.
c2thamax

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FrankieJ1966
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Just so's ya know: Star Trek literally sidesteps the physical universe with warp drive. Warp nacelles create something called a subspace field which allows the ship to enter subspace and travel at the FTL speeds. Subspace is concurrent with and parallel to the physical universe. They also pay particular attention to the theory of relativity: "full impulse" power while in real space is limited to 0.25c to limit time dilation effect on the crew. I had no idea as a child and new Star Trek fan in the mid-Seventies that one day as an adult, I would have a wireless communication device that is eerily similar to the props they used, nor that I would have a computer that essentially has access to the cumulative knowledge, information, and history of our entire civilization... Go, JJ Abrams, "Star Trek" in theaters May 2009!!!!!!

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Physics_rulz
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This is one of the better posts I have come across, with particularly interesting points. One of these was that of the compresion/expansion of space in order to lessen the distance between two points in space. May I ask (and you, if you so desire, reply to) the question of why such would work? Is space just as is perceived from a non-scientific standpoint, and area wherein 'things' may exist? Or does it consist of something -spacetime?- that also governs the dimensions of material objects,which would thus render such a concept invalid? Essentially, is this theory only only given possibility through lack of knowledge of the nature of space, just as ones relying upon spacetime[if it's existance is unproven] alos would? Thankyou PRz

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meisdaflyingtiga
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kachow peeps

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