Cops Have Used a Secret Radar That "Sees" Through Walls for Two Years

A new device that can "see" through walls using radio waves started stirring up privacy concerns in a federal appeals court just last month. And it's about damn time; according to a recent report from USA Today, over 50 law enforcement agencies have secretly been using the new radars for the past two years. » 1/20/15 10:59am 1/20/15 10:59am

Radar-Enabled Light Bulbs Automatically Detect When the Elderly Fall

Even when the elderly are being tended to by a caregiver, it's almost impossible to keep an eye on them 100 percent of the time. So a Japanese company has developed a pair of LED light bulbs featuring built-in laser-based radar to track the movements of someone in its vicinity, and automatically send alerts when they… » 11/11/14 12:43pm 11/11/14 12:43pm

The Early Warning Radar Systems That Defended WWII Britain

In 1940, less than a year after blitzkrieging its way through Poland and the rest of Western Europe, the Nazi army set its sights on the UK and commenced a vicious bombing campaign targeting the nation's major cities. Luckily, the British Royal Air Force saw this threat coming and cleverly deployed a series of radio… » 10/27/14 11:40am 10/27/14 11:40am

Mysterious Radar Cloud Over the Midwest Was Actually... Butterflies

Was it a bird? A plane? A tornado cell? Nope. The huge, slow-moving cloud picked up on radar in Illinois and Missouri last week was nothing anyone expected. The US National Weather Service reports it was actually a swarm of millions of monarch butterflies—which have been disappearing at alarming speeds over the past… » 9/23/14 9:56am 9/23/14 9:56am

Tech From Stealth Warplanes Make Wind Turbines Invisible to Radar

From afar, wind turbines look like small toys spinning lazily in the wind. But get up close, and you realize what huge structures they really are: hundreds of feet tall, blade tips slicing through the air at over 100 mph. And these wind turbines can really scramble airport and weather radars. To solve the problem,… » 9/08/14 7:40pm 9/08/14 7:40pm

Five Beautiful GIFs of Hurricane Arthur Show Nature's Terrifying Power

When Hurricane Arthur made landfall on the North Carolina coast last weekend, it was the strongest hurricane to strike the United States since Hurricane Ike hit Texas in 2008. The storm was downright impressive visually, and these gifs document the latent beauty of nature's power. » 7/08/14 2:00pm 7/08/14 2:00pm

Raytheon's Modular Missile Defense Snaps Together Like Lego Bricks

As the number and variety of air, space, and surface-based threats to our naval fleets continue to proliferate, defending against them all is getting harder and harder. But equipped with this new unified threat detection system from Raytheon, our Arleigh Burke-class destroyers will know what's coming from 30 times… » 6/17/14 11:40am 6/17/14 11:40am

A Pyramid in the Middle of Nowhere Built To Track the End of the World

A huge pyramid in the middle of nowhere tracking the end of the world on radar. An abstract geometric shape beneath the sky without a human being in sight. It could be the opening scene of an apocalyptic science fiction film, but it's just the U.S. military going about its business, building vast and other-worldly… » 4/13/14 2:00pm 4/13/14 2:00pm

Laser and Radar Let Researchers Peer Deep Inside Ancient Roman Bridges

Ancient stone bridges dot the Spanish hills. Some are still in use, and all play a part in defining the region's landscape and heritage. Now, researchers at Spain's University of Vigo can examine the inner structures of these bridges without disturbing a single stone, thanks to some incredibly powerful imaging… » 3/14/14 1:00pm 3/14/14 1:00pm

Can Radar and RFID Stop Drivers From Killing Cyclists?

Last month, London reached a grim milestone: Six cyclists were killed within 14 days, sparking a massive "die-in" protest. London isn't alone; 176 cyclists or pedestrians were killed in NYC last year. The rapidly rising death toll is spurring a race to build a technology to warn drivers before they hit someone on foot… » 12/31/13 2:30pm 12/31/13 2:30pm

Dolphins Inspire a New Kind of Radar That Detects Hidden Electronics

Not only are they out there keeping fish populations under control and occasionally leading lost boaters to land, dolphins' unique hunting techniques have also recently inspired a new kind of radar that's able to pinpoint hidden electronics like bomb triggers and surveillance devices. Move over dogs, man's officially… » 10/24/13 4:40pm 10/24/13 4:40pm

This Handheld Radar Will Track Disaster Victims by Their Heartbeats

Building collapses are a tragic and overwhelmingly fatal occurrence in the developing world. But that could soon change once NASA and the DHS's revolutionary, handheld radar unit comes to fruition. It scans for and identifies buried building collapse victims based solely on their breathing patterns and heartbeats. » 9/26/13 11:35am 9/26/13 11:35am

8 Abandoned Radar Stations That Were Once State-of-the-Art

Between the 1930s and 1970s, billions of dollars were spent to build early-warning systems—often in the most remote parts of the world. But by the late 1980s, most of these sites had been abruptly shuttered—made increasingly obsolete by the emergence of satellite communications. Yet the hulking shells, discs, and… » 9/16/13 9:01am 9/16/13 9:01am

This Millimeter Wave Radar Will Give Everybody TSA Vision

Millimeter wave radars have been saddled with an unfairly negative public perception ever since the TSA's bumbling body scanner program began. But, the technology itself is immensely useful for more than peeping under clothes and this miniaturized prototype from the Fraunhofer Institute aims to prove it. » 3/28/13 11:30am 3/28/13 11:30am