laser

Crave Ep. 120: Be careful where you leave your DNA

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An artist combs public places for gum, hair, and cigarette butts, and then 3D-prints portraits of the unsuspecting people who've left their DNA behind. Plus, we take a look at a laser-powered flashlight, and get our heads chopped off in an app for the Oculus Rift head-mounted display. … Read more

Lockheed laser weapon hits its mark again

Lockheed Martin's ADAM laser weapon wants to step up its game.

In a series of tests in March and April, the prototype directed-energy system destroyed eight small-caliber rocket targets in flight at a range of approximately 1.5 kilometers (0.9 mile), Lockheed said Wednesday. The defense contractor described the targets as "free-flying Qassam-like rockets," making reference to the simple but deadly projectiles developed by the military arm of the Palestinian group Hamas.

You can see a video of one of those test-firings below.

The 2013 tests follow a series of trials in 2012 when the ADAM (… Read more

Phosforce laser flashlight can illuminate or incinerate

Didn't get enough of Star Wars Day on the weekend? How about dazzling Sith Lords with this lightsaber-style flashlight?

The Phosforce from Wicked Lasers turns the company's powerful Arctic laser into a portable light that kicks out 500 lumens. It's nowhere near as powerful as the company's Torch flashlight -- which at 4,100 lumens is apparently strong enough to ignite paper -- but it's mighty bright. … Read more

Multi-deal Monday: Cheap Roku, free CrashPlan, and affordable printing

Quick housekeeping note: Last month I told you about DietBet, an intriguing site that links you with others for a fun (and potentially profitable) weight-loss contest. I set up a game with a $25 buy-in, then waited to see what happened.

Twenty-eight days later, the contest is over. Exactly 400 people signed up, for a pot total of $10,000. Your Cheapskate is now 8.5 pounds lighter. And in a couple days I'll know how many others will join me in divvying up the pot. Bottom line: This was a huge success for me, and whether or not … Read more

Motion-sensing, laser-laden sculpture is 'Fluidic' in the language of light

With a wave of your hand, bright lasers cascade across 12,000 translucent spheres that hang above a reflecting pool, creating a flickering, sinuous symphony of light. The ethereal experience isn't a dream, but rather Fluidic, a hybrid light show and sculpture that responds to viewers' movements.

Created by Berlin-based design studio Whitevoid Designs for Hyundai's Advanced Design Center, "Fluidic -- Sculpture in Motion" is just one of many interesting art exhibits on show during Italy's Milan Design Week, which runs through this weekend.… Read more

Neon waterfalls illuminate nature at night

There's something beautiful and futuristic about bright neon lights against a natural background.

In a stunning series of images called "Neon Luminance," San Francisco multimedia group From the Lenz used long-exposure photography to capture glow sticks traveling down a waterfall. The resulting pictures look straight out of a science fiction movie featuring a strange new world unlike our own. … Read more

U.S. Navy uses laser to take down drone

CNET Update is powering up the laser cats:

Lasers are coming soon to a battleship near you. The U.S. Navy posted a video of a laser weapon that set fire to a drone, and it plans to put one on a ship by the end of the year. One shot of energy from the laser costs about $1.

Also featured in this tech roundup:

- The Galaxy Note 8 is an impressive 8-inch tablet that's tripped up by a $400 price tag. But if you like a stylus, you might not mind that it's more expensive than … Read more

U.S. Navy sees shipboard laser weapon coming soon

The U.S. Navy is continuing its flirtation with laser weapons.

The latest tip-toeing move toward a more serious relationship came today with word from the Navy that it plans to deploy a solid-state laser weapon system aboard the USS Ponce in fiscal year 2014. Other than that, though, the announcement was absent any details about the capabilities of the particular laser weapon system or the expectations for its performance, though the Navy talked up the virtues of laser weapons in general as a countermeasure against threats including aerial drones and fast-moving small boats.

The Navy also described the deployment … Read more

How lasers can switch off cocaine addiction

Researchers who shined a laser light in a certain region of the brain -- stimulating the area associated with decision-making and impulse control -- were able to zap what they call "cocaine seeking" behaviors in addicts.

And while their work was on rats, their hope is that a similar technique called transcranial magnetic stimulation (TMS, currently used to improve symptoms of depression) will work on humans as well.… Read more