lasers

Watch Liquid Nitrogen Change The Colour Of Lasers And LEDs

When you drop lasers and LEDs into liquid nitrogen, the lights cool down and start turning one colour into another. In the GIF above you’ll see it start from a urine yellow to a Mountain Dew colour and then to a radiator fluid green and finally some super alien blood goo substance. It’s great!


Behold, The Latest Laser Built For Frying Rogue Drones

Here comes yet another drone-zapping laser: A German missile manufacturer built this Death Star-like beam to protect world leaders. And it works, too: in a field test, it took down a mini-drone in three seconds flat.


Silly Video Imagines If Crocodiles Could Shoot Lasers At Other Animals

The original footage of this battle between bats and crocodiles is already insane, as the crocs lurk in the water and chomp at the flying bats. But adding lasers to the crocs and fire bombs to the bats makes it even crazier. The warfare is like imagining a future where animals could use weapons.


Physicists Just Cooled Molecules To A Hair Above Absolute Zero

Many scientists say that reaching absolute zero is a lot like travelling at the speed of light: impossible. Well, some MIT scientists almost pulled a Doc Brown and got a lot closer to the impossible goal by cooling a molecule to 500 nanokelvins. That’s just above absolute zero and about a million times colder than interstellar space.


Watch An Incredible Laser Beam Zap Out Art At Blazing Speeds

Damn. That laser is something. It’s a specially designed LasX proton laser art system that blasts a beam to make art at lightning speeds. The CAD file for the design, called After Sunset, was created by Andy Gikling and was imported to the laser control software and then zapped out onto the chalkboard to etch the design. How cool is that?


This 40W Homemade Laser Shotgun Is Pure Insanity

Just because you can make something at home, doesn’t necessarily mean you should. Today’s example? A laser ‘shotgun’ that uses a lens to combine eight 5W lasers into something that should definitely spice up your next PowerPoint.


10 Of The Coolest Laser Gun Battles In Movie History

What’s the coolest thing about any sci-fi action movie? Lasers. There is nothing like a good pew pew that makes movie watchers feel like they’re watching a future war battle. Watch Mojo lists 10 of the most awesomest laser gun battles in movies below. Movies that everyone holds dear to their heart like Star Wars and Terminator 2 obviously make the cut.


Tiny Lasers On Microchips Could Help Self-Driving Cars 'See' The Road

Since self-driving cars don’t have drivers, the cars have to perceive their surroundings themselves. Lidar is a great option — it’s like radar but with lasers instead of radio waves — but it’s big and pricy. However, a new kind of lidar from DARPA could change that.


This Is How Valve's Amazing Lighthouse Tracking Technology Works

Valve’s virtual reality demo at GDC was nothing short of magical — it used fancy emitter technology to let us actually walk around a demo room. It felt so real. Valve calls the tech Lighthouse, and it’s kind of genius.


Shooting A Laser At A Planet, But Not To Blow It Up

This breathtaking photo shows the intense orange beam of a new 22W laser pointed at the planet Saturn. Wait, isn’t this like the shocking scene in Star Wars where the Death Star’s superlaser completely annihilated planet Alderaan?


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