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If you're trying to save power, you generally don't leave your lights on all night. With a few exceptions, however, that's what cities do with their streetlights. A Spanish team is addressing that situation, with a stand-alone streetlight that runs off of both solar and wind power.

It's harder than ever for smartphone makers to differentiate their devices, so we're seeing more experiments (of questionable value) like curved screens. Let's look at the features and specs of the latest curved-screen phone, the LG G Flex 2, next to the Samsung Galaxy Note 4.

CUMC researcher Elizabeth Hillman has developed a new 3D microscope prototype dubbed "SCAPE", which requires no mounting of samples or other special preparation, and is capable of imaging freely moving living samples at speeds 10 to 100 times faster than current laser-scanning microscopes.

Riding a mountain bike indoors on rollers or trainers may help riders to keep fit, but it's still far less fun or interesting than riding outdoors on actual trails. Norwegian startup Activetainment hopes to close that gap a little, however, with its interactive ebove B/01 bike trainer.

IFit has come up with a way of combining the looks of a classic timepiece with the performance of a smartwatch. The Duo watch uses a rotating case to show a digital display on one side and a traditional analog face on the other.

A germanium-tin laser created by scientists in Switzerland promises greater compatibility and efficiencies with silicon-based semiconductors and hold potential for light-based data transmission within computer chips, thereby negating copper wire connections and vastly increasing processing speeds.

Three cars moved into the top 100 most expensive cars ever sold at auction during the Scottsdale Auction week and a total of 41 cars sold for more than $1 million. This overview provides a complete analysis of the major sales, prices, images and links to all the key auction descriptions.

Like a teenager going off to college, DARPA's Atlas robot has cut the tether and is walking on its own without a safety line.

With regular production of the current-generation Defender set to come to a close by year-end, Land Rover is declaring 2015 the Year of the Defender, with the celebration to include a trio of Defender special editions.

EnteroMedics' Maestro System has become the first obesity device to be approved by the United States Food and Drug Administration in ten years. The device, which the company compares to a pacemaker, is designed to block hunger signals via the nervous system to reduce feelings of hunger.

The Panasonic Lumix GF7 is the latest camera which has been designed to appeal to the discerning narcissist, by offering the ability to take high-quality selfies. It has a 180-degree tilting touchscreen, hands-free selfie shooting, and picture effects to make you look more attractive and slimmer.

Last year's International CES (the 2014 show) was chock full of Bluetooth speakers, and one of the few that stood out from the pack was Nyne's floating, waterproof Aqua speaker. Gizmag has since had the chance to test one out and see if it truly sinks or swims.