How Scientifically Accurate Is Watchmen?

A science consultant to the film explains some of its mysteries















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WHY SO BLUE? Dr. Manhattan's color and (some of) his powers can be explained by quantum mechanics, thanks to your (self-proclaimed) "friendly neighborhood physics professor," Jim Kakalios. Image: WARNER BROS. ENTERTAINMENT

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The anticipated film Watchmen, based on the 1980s DC Comics 12-part comic book series (later adapted as a graphic novel), hits theaters tomorrow. Die-hard fans of the original publication may fret over its faithfulness to the series, but studio execs also worried about their movie's faithfulness to science. To set their minds at ease, they placed a call to Jim Kakalios, a physics professor at the University of Minnesota.

Kakalios, 50, began advising the film's makers in the summer of 2007 on everything from the quantum mechanics of Dr. Manhattan (one of the superheroes of the story) down to the details in the laboratories. "They wanted to know what was around the corner at the end of the long corridor, even if the audience wasn't going to see it," he says.

So why is Dr. Manhattan blue? He might just be leaking electrons, Kakalios explains. In a previous accident, the character had destroyed his "intrinsic field" (a made-up concept), which presumably stripped him of the fundamental forces—electromagnetic, strong force, weak force—other than gravity, that hold material together. Some avid readers of the book wrote to Kakalios expressing concern after seeing a trailer that included an "intrinsic field generator," which, they felt, was clearly meant to be an intrinsic field remover.

Not to worry, Kakalios says: in the same way that sound waves can be canceled by running other waves out of synch with them, one could destroy intrinsic fields by canceling them out with others. (Kakalios cautioned the filmmakers, however, that generating those fields would take a ton of energy, so it would be wise to include a particle accelerator of some sort in the lab.)

Dr. Manhattan's life-altering accident, like so many others in comic book history, has given him special quantum powers, such as (drum roll)… teleportation!

"Teleportation isn't real," Kakalios concedes. "But quantum mechanical tunneling is." In quantum tunneling, which scientists have known about for some 80 years, a particle passes through a barrier that classical mechanical physics says it shouldn't be able to. By that point, he says, "you're dealing with real science that is just as fantastic as anything in the comic book."

Kakalios was also happy to correct something that Hollywood always gets wrong: the ever-prominent A Beautiful Mind–style blackboard. In the movies, he says, these chalkboards are always filled with the most complex, but unrelated equations—Schrödinger's right next to Heisenberg's—probably chosen by an art director. But in real life, he says, it's only going to be one (not-so-famous) problem, along with notes to remind oneself to pick up the kids from, say, swim Lessons (or in Schrödinger's case, to let his cat out of that box).

Not many physics professors get a phone call from the National Academy of Sciences in Washington, D.C., asking them to help out on a new Warner Bros. Entertainment superhero movie. But then again, not many of them are Jim Kakalios. By day, he studies nanotechnology, but explaining science is his passion—and he's found that superheroes are just the right tool. (He's even written a book called The Physics of Superheroes and teaches a course on the subject.) "I can use this in some kind of sneaky ninja fashion to teach…real science," he says.

Kakalios notes that scientific incongruities in movies don't actually bother him that much: "I don't go to these movies with a pad of paper and a calculator." But he delights in finding snippets of accuracy in films, which to him, "is like finding an inside joke." In Iron Man, for instance, he noticed that star Robert Downey, Jr.'s character, Tony Stark, constructed the superhuman Iron Man suit using the same type of soldering iron Kakalios has in his lab—and correctly!

But he's not too concerned about the central aspects of Watchmen that can't fully be reconciled with real science, such as Dr. Manhattan's ability to be in two places simultaneously. In superhero movies, after all, he says, "You're asking the audience to buy something that's intrinsically ridiculous."

Still, he thinks it's a good chance to tap into a new market of minds. "The audience for this material…, [they] are also, in general, fans of real science," he says. At the end of the day, a nerd is a nerd, Kakalios admits comfortably, because he is also a comic book aficionado: "Geeks are people who get turned on by ideas" whether that's about spider powers or quantum mechanics.

And superheroes use a lot of the same brainpower and creativity as scientists do, Kakalios adds: "In the lab we're always doing creative problem solving, but usually with much less dire consequences."

Here's a video of Jim Kakalios explaining more about the science in Watchmen.



14 Comments

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  1. 1. hotblack 08:07 PM 3/5/09

    1. It's a movie.
    2. It's a big budget movie.
    3. It's a big budget movie based on a comic book.

    http://www.npr.org/templates/story/story.php?storyId=101378251

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  2. 2. Kris in reply to candide 09:43 AM 3/6/09

    They did batman back in July :)
    http://www.sciam.com/article.cfm?id=dark-knight-shift-why-bat

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  3. 3. proadventurer 11:30 AM 3/6/09

    There is a whole TV series based on "The Science of Batman/Spiderman/Superman"

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  4. 4. ckale in reply to Kris 01:21 PM 3/6/09

    Which candide knows, as s/he whined about it then, too.

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  5. 5. Mr. Lobster 05:23 PM 3/6/09

    Meh. It was still a good read. This is what happens when a scientist gets bored...

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  6. 6. LarianLeQuella 06:28 PM 3/6/09

    Come on, admit it, you'd be THRILLED to get a call to be a science consultant for a big Hollywood movie. Why all the hate. Like Dr. Kakalios says, "I can use this in some kind of sneaky ninja fashion to teach&real science." THAT is a great vehicle to expose more people not only to that real science, but also a methodology for some critical thinking.

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  7. 7. jack.123 10:20 PM 3/7/09

    why is it when I atempt submit it is deleted?

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  8. 8. PaulS 09:18 AM 3/8/09

    Would that be a Cherenkov Blue?

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  9. 9. Sole2heart in reply to candide 08:37 PM 3/8/09

    Such snobbery. I doubt that Michio Kaku would be so narrow minded and socially xenophobic.

    Reply | Report Abuse | Link to this
  10. 10. Quinn the Eskimo 12:25 AM 3/9/09

    Yo! Dude, it's a mooooovie!

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  11. 11. mmfiore 09:41 AM 3/10/09

    We are a group that is challenging the the current paradigm in physics which is Quantum Mechanics and String Theory. There is a new Theory of Everything Breakthrough. It exposes the flaws in both Quantum Theory and String Theory. Please Help us set the physics community back on the right course and prove that Einstein was right! Visit our site The Theory of Super Relativity: http://www.superrelativity.org

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  12. 12. mmfiore 09:42 AM 3/10/09

    We are a group that is challenging the the current paradigm in physics which is Quantum Mechanics and String Theory. There is a new Theory of Everything Breakthrough. It exposes the flaws in both Quantum Theory and String Theory. Please Help us set the physics community back on
    the right course and prove that Einstein was right! Visit our site The Theory of Super Relativity: http://www.superrelativity.org

    Reply | Report Abuse | Link to this
  13. 13. karl 12:28 PM 3/11/09

    In arts (literature, theater, cinema, and similar) there is a requirement to create the illusion you are in a given place and time, you wouldn't expect a science lab where a gypsy would have her crystal ball and said "oh Dr Von Doom! I see trouble!", nor a clean medical style lab where the famous Viktor Von Frankenstein said "Igor!, please turn the power on, 5000 joules", or expect an astronaut to get in a western style canteen brawl (unless he was on a holodeck), science consultants can do wonders here by infiltrating some real science, like avoiding blatant violations to physics even on a Newtonian level, or giving the events happening there some structure, as "you can make a point jump, but it requires so much energy that you must wait at least x time to make the next one", which would be consistent with a machine's duty cycle, if not, you will be exposed to a lethal dose of "handwavium" radiation (side effects, tag the movie in question a B series, allergy to science fiction, and make it a box failure)

    On the other hand, speaking as a Sith Lord "you don't know the power of the dark side of science fiction!", it has the power to "corrupt" minds that would otherwise be spent on lawyers, musicians, sportsmen, MBAs and business consultants and turn them to scientists, medics, researchers and engineers.
    I mean, how many roboticists weren't "tempted" by having their own R2D2? and how many scientists weren't inspired by a big movie/great novel/place your ad here into studying a given field?

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  14. 14. jockohomo in reply to LarianLeQuella 03:59 AM 4/5/09

    I completely agree with Larian. This is fun stuff! It just so happens that you can spark new minds or unchallenged minds with this stuff. Stop being so bitter.

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