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On March 18, 1965, Soviet cosmonauts Alexei Leonov and Pavel Belyayev lifted off in Voskhod (Sunrise) 2, during the flight of which Leonov would become the first person to step into the vacuum of space.

The PlyFly Go-Kart is a flatpack go-kart that's powered by a 4-stroke engine. The wooden vehicle can be assembled in just a few hours, and promises speeds of up to 25 mph (40 km/h). It's currently the subject of a Kickstarter campaign.

When drowsiness sets in on the road, drivers typically open a window and turn up the radio. The Impecca Alert Band can warn drivers that they are becoming fatigued in advance of it becoming dangerous, giving users more time to do the one thing that helps: stop and take a break.

Japan hopes to one day harvest power from an orbiting solar farm and beam electricity back to Earth. This week it announced the successful test of such a wireless power system at a small scale.

Folding electric bicycles are becoming increasingly popular, although the presence of a chain (or an external belt drive) can complicate the folding procedure. That's why JAM Vehicles created the JIVR Bike. It has a chainless sealed drivetrain, along with some other interesting features.

The Instrument 1 has changed significantly since we last saw it back in 2014. The latest version is more widely compatible and features a new design. The company has headed to Kickstarter to fund the the ambitious multi-instrument, and it's already surpassed its funding goal.

BMW has chosen its X5 SUV to be its first plug-in hybrid production car. The BMW X5 xDrive40e has lots of trick engineering slickly packaged in a vehicle that could bring plug-in hybrid technology to a wider potential audience than if it was used in a sedan or a sports car.

We've already heard about swallowable capsules that can transmit video from within the digestive tract. Pictures will only tell you so much, though. That's why researchers have now developed a capsule that measures concentrations of intestinal gases, and sends that data to a smartphone.

The all-new Blue Freedom kit offers yet another portable power alternative. "The world's smallest hydropower plant" transforms the power of running water into phone chatting, internet browsing, music listening, GPS navigating and other mobile device activities.

On most fish, their hard, overlapping scales provide protection against pokes and cuts. Because those scales are attached to a flexible skin, however, the fish are still able to easily twist their bodies. Scientists are now attempting to copy that structure, to develop flexible-yet-effective armor.

Developed by the Create Lab at Carnegie Mellon University Robotics Institute, Speck is a state-of-the-art, low-cost, portable indoor air quality monitor that offers more precision to users. Enabled with Wi-Fi, it allows users to upload data to a portal and access official data.

Researchers have found that fiber optics can be used to build low-power, high-bandwidth artificial neurons that mimic their biological counterparts. This technology could lead to computers that think and learn like a human.