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Facial expressions tell us how others are feeling, but it's far from an exact science. Now, researchers from MIT have developed EQ-Radio, a device that uses RF signals to see through that poker face and determine someone’s emotional state with high accuracy, based on their heartbeat and breathing.

2,700 light years from Earth, in the heart of the Stingray Nebula, a small star has allowed astronomers to observe something incredible: a dramatic contracting and heating phase followed by a rapid rebirth into a cooling, expanding star – just as astronomers predicted.

​The US military is getting its first new hand grenade in 40 years as engineers at ARDEC work on a safer multi-purpose design. Called the Enhanced Tactical Multi-Purpose (ET-MP) hand grenade, it will allow soldiers to choose between concussive or fragmentation blasts with the flip of a lever.

GoPro has announced the latest step in the evolution of its Hero line of actioncams, namely the Hero5 Black and the Hero5 Session. The former is being lauded by the company as "the most powerful, easy-to-use GoPro, ever." ​

Fujifilm has announced that it is has developed a new mirrorless medium format camera system. The GFX system will launch in 2017 with the GFX 50S which features a 51.4-megapixel sensor measuring 43.8 x 32.9 mm.

When it comes to accuracy, response and low distortion reproduction, planar magnetic headphones are pretty hard to beat. But that sonic excellence can come at a very high price. Online retailer Monoprice is about to change that with some planars that definitely won't break the bank.

Self-driving cars have to be able to "see" where they're going, and one way to do that is by using a LiDAR sensor. Velodyne has announced a new sensor, the Puck Hi-Res, that it says allows vehicles to see farther and with more clarity.

In light of Apple's controversial decision to nix the headphone jack on the iPhone 7, let’s take a look at all the hardware that Apple’s already killed. Then you can decide whether or not removal of the headphone jack is following a tradition of innovation – or something else altogether.

​It was only a few months ago that e-Go aeroplanes delivered its first production aircraft into the hands of its first customer. Now it is looking for a buyer to keep the company afloat and allow it to pursue development of three- and five-seater versions of its compact single-seat aircraft.

Several years ago, students from the University of Maryland achieved the world's longest human-powered helicopter flight. In 2014, a new team took over and began converting the aircraft to solar-electric power. It made its first purely sun-powered flight late last month.​

From "WarGames" to "Mr Robot" we’ve tracked the path of Hollywood representations of hacking from the rigorously accurate to the amusingly ridiculous. In Part One we look at the 1980s.

Two years ago, we looked at Vello, an Austrian company with its own take on the folding bicycle. Its line includes several different models built around its signature folding system, and now it also includes an electric model - or at least it will if Vello's crowdfunding campaign is a success.