When it comes to cooling things in the lab, scientists have long found an experimental lower limit just above the theoretical coldest temperature. Well, a group of American scientists have now made things *lowers shades* ...even cooler.
Tagged With lasers
Video: This immersive laser beam installation seems like the perfect place to stare at some lights, cleanse yourself from sin and, like, maybe even just leave your soul behind. The room is so huge and the lasers come from everywhere that it must be a hell of an experience. Like, you're trapped inside a machine. Or the future. Or another dimension entirely.
Wicked Lasers is known for its handheld lasers and torches that redefine what it means to be bright. A few years ago it released a torch that was intense enough to start a fire, and now the company has managed to dramatically shrink its design so you can easily bring it the next time you go camping and leave the matches at home.
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.
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.
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.
Video: The weather has been really fun and generous with lightning strikes these days. We've seen it destroy trees and gotten an up close view of it striking but this one might be the coolest angle yet: from outside a flying aeroplane window. The lightning hits the tip of the wing and then streaks in a straight line like a laser shooting out. Pretty cool.
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.
iPin was the first company to use the iPhone's headphone jack as an accessory port for a compact laser pointer. And not to diminish the fun you can have with a laser, but the company's latest product is considerably more useful since it turns your smartphone into a full-on laser measure.
There's probably a good reason — involving lawsuits and lawyers — why toymakers don't include working superlasers on their Death Star playsets. But since Patrick Priebe doesn't plan on selling his Death Star replica to the public, he had no qualms about including a terrifying 84-watt laser.
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.
Point a laser at someone's skin and they will react in fear, assuming it's going to burn. But researchers at the University of Washington have come up with a way to make a laser that cools, instead, successfully lowering the temperature of water by about 2C.