Tagged With lasers

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When Star Wars was released in May of 1977 it captured the imaginations of numerous people who would go on to change the world. One man, an inventor named George Carter was inspired to change the ways in which teens screwed around in their free time — he invented Laser Tag.

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Lasers and metal were part of 3D printing for decades before the machines became affordable for personal use. But researchers at Harvard are demonstrating a new technique by which 3D metal structures can be printed in midair, without the need for anything supporting them.

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A new generation of tabletop accelerators has the potential to accelerate electrons to near the speed of light, without the need for gigantic machines like the Large Hadron Collider. But that all-important energy beam is too spread out for optimal performance. An international team of physicists has figured out a way to address this shortcoming and described their method in a new paper in Physics of Plasmas.

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Humans have long dreamed of discovering intelligent life beyond Earth. But truth is, we have no way of knowing if an alien civilisation would be friendly or hostile. Should we have the rotten luck of discovering the Borg, we'll need to get our collective asses into hiding quickly — and a team of astronomers thinks they know how we can. Naturally, it involves lasers.

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When war changes, it usually changes slowly. We’re used to military technology advancing in predictable, plodding steps – incremental advances on what went before, with one side spending years developing its new plane, or tank, or missile, the other side simultaneously developing ways to undermine it. The first nation builds a thing, the second builds a thing to make it irrelevant, and so the gears of the military-industrial complex keep on a-grinding.

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A certain medical dye will stick together when hit by a laser, effectively suturing a wound without the need for staples or traditional sutures. But the dye will only penetrate as deep as the light does, so this method only works on superficial wounds. The solution is a biological wave guide to direct the light deeper into the wound.

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Image Cache: What's the most powerful weapon in the sci-fi universe? How does a lightsaber in Star Wars compare to the energy sword of Halo? What about a Death Star vs Doctor Who's reality bomb? And how do they match up with a real life nuclear bomb?

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Video: When you use a laser to cook bacon, you might not get the same invigorating, impossible to resist smell you do when you fry it but you do score some awesome points for using a freaking laser to cook bacon. Munchies went to Japan to see how laser cooking a bacon strip is done: it requires laser cutting tech and detailed mapping to cook the strip of bacon exactly the way you want it. Program the machine to point the beam where you want and pew pew bacon.