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'Star Wars' Tech
A long time ago in a studio far, far away, filmmaker George Lucas created one of the seminal works of science fiction: the "Star Wars" movie series.
Nearly 40 years later, the ideas introduced by the films are still staples of the genre, and with new installments of the series set to hit theaters in the coming years, fans will be pleased to see lightsabers, hyperdrives and speeders in abundance.
While the science and technologies behind the franchise are firmly rooted in fantasy, their enduring appeal has served as inspiration for many real-life scientists and engineers. Here are some of the most notable attempts to turn "Star Wars'" science fiction into science fact.
LightsabersSlide 2 of 17
The most iconic piece of "Star Wars" technology is the lightsaber, but it's also probably the most far-fetched, experts say. The photons that make up light have long been considered massless particles that don't interact with each other, which makes the prospect of clashing beams of light in epic lightsaber duels unlikely.
In 2013, however, researchers from Harvard University and the Massachusetts Institute of Technology (MIT) demonstrated that when pairs of photons were fired through a cloud of supercooled atoms, the photons emerged as a single molecule. Talking about the interaction between the particles to the Harvard Gazette, Mikhail Lukin, a professor of physics at Harvard, said, "It's not an inapt analogy to compare this to lightsabers." [Infographic: Secrets of the Jedi Lightsaber]
But Eric Davis, a physicist at the Institute for Advanced Studies at Austin, in Texas, said re-creating the effect in real life is a whole other ball game. "Lightsabers are purely fictional and will never be developed," he said. "Using the contraptions and cryogenic equipment to produce trapped quantum gases 2 feet [0.6 m] from the end of a lightsaber emitter is impractical."
But all is not lost when it comes to light-based weapons: Scientists are close to developing weapons similar to the blaster guns featured in "Star Wars." In fact, the U.S. Navy has already demonstrated a ship-based laser weapon capable of shooting drones out of the sky and disabling small boats. And this summer, the U.S. Air Force began testing another laser-based weapon that is five times as powerful as the Navy's version, and small enough to be fitted to fighter jets and Humvees.Slide 3 of 17
HyperspaceSlide 4 of 17
In the films, spaceships like Han Solo's Millennium Falcon are able to jet between solar systems that are light-years apart. According to "Star Wars" canon, these "hyperdrive" propulsion systems let intergalactic travelers jump into a shadow dimension called "hyperspace," which provides shortcuts between points in real space.
While the movies are hazy on the details, the idea of hyperspace and faster-than-light (FTL) travel has a basis in real science, said Davis, who researches the possibility of FTL travel.
While it's impossible to travel faster than light, the curved nature of space-time proposed by Albert Einstein suggests space could be distorted to shorten the distance between two points. One way of doing this would be a warp drive that contracts space in front of a ship and expands it behind the vessel. Another would be to create a wormhole, or a section of space that curves in on itself to create a shortcut between distant locations. Creating these kinds of distortions would require exotic matter with so-called "negative energy," Davis told Live Science, a phenomenon that has been demonstrated in the lab using the Casimir effect, which can be measured as the force of attraction or repulsion between two parallel mirrors that are placed just tiny distances apart in a vacuum. [Warped Physics: 10 Effects of Faster-Than-Light Travel]
Earlier this year, a lab called Eagleworks, based at NASA's Johnson Space Center in Houston, Texas, claimed to have created a warp drive that appears to exploit this effect to create spatial distortions in a vacuum. But, sadly for sci-fi fans, the lab's unpublished findings have been met with skepticism. And Davis, an FTL optimist, called the claims "bizarre and questionable."
"These remain as speculative theoretical concepts at present because they remain under further theoretical study and also because there is no technology envisioned that can implement them," he said. "It might take between 50 and 300 years to develop the technology that produces traversable wormholes or warp drives."Slide 5 of 17
SpeedersSlide 6 of 17
A less conceptually troublesome mode of transport featured in "Star Wars" is likely a lot closer to being realized. A number of firms are currently trying to create working versions of "hoverbikes," known as "speeders" in the films.
Aerofex, a California-based startup company, developed the Aero-X vehicle, which is described as "a hovercraft that rides like a motorcycle," and can fly at 45 mph (72 km/h) up to 10 feet (3 meters) off the ground. For speed demons, U.K.-based Malloy Aeronautics' Hoverbike is projected to reach speeds of more than 170 mph (274 km/h) at the same altitude as a helicopter.
Both Aerofex and Malloy Aeronautics' hoverbikes use standard gasoline, but environmentally conscious "Star Wars" fans could soon have futuristic transportation alternatives, too. Bay Zoltan Nonprofit Ltd., a Hungarian state-owned applied research institute, has created an electric battery-powered tricopter called the Flike. Before you get your hopes up, though, all three vehicles are still firmly in the design phase.Slide 7 of 17
ExoplanetsSlide 8 of 17