Delivery Drones Already Exist — And They're Way Bigger Than Amazon's

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Delivery drones don’t just exist as prototypes in Jeff Bezos’ skunkworks. They already exist, and they’re already hauling some seriously heavy freight.

WIRED Gear Gadget Lab

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Ever Seen These Pics of MDMA and LSD? Dude, They're Intense

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Extraordinary earthquake lights explained -- they're not UFOs

These rainbowed lights were recorded by someone with a cell phone right before the massive 2008 earthquake in Sichuan, China (see video below).

(Credit:Screengrab by Dara Kerr/CNET)

On a hazy day in 2008, bizarre orb-shaped clouds filled with rainbow-hued lights appeared over Sichuan province in China. Minutes later a cataclysmic magnitude 8.0 earthquake devastated the area reportedly leaving nearly 70,000 people dead.

At the time, these light-filled clouds were thought to be a coincidental phenomenon, but now researchers believe they had a direct correlation to the earthquake.

A new study published in Seismological Research Letters says these flashes of light rarely seen before or during earthquakes are caused by naturally occurring electrical processes in certain types of rock.

Sichuan was one of several places to see such lights before an earthquake. Other instances include the 2009 earthquake in L'Aquila, Italy, where locals witnessed what looked to be four-inch flames hovering above a stone road right before the temblor, and the 1988 earthquake in Quebec, Canada, where people saw a purplish sphere of light near the St. Lawrence River 11 days before the quake, according to National Geographic.

The lights can come in "many different shapes, forms, and colors," study coauthor Friedemann Freund, an adjunct professor of physics at San Jose State University and a senior researcher at NASA's Ames Research Center, told National Geographic. Not only are there globes of light and flickering flames, but some earthquake lights look like quick bursts of lightning coming straight out of the ground.

Past explanations for these strange colorful lights that preceded earthquakes were UFOs, birds, and planes. The phenomena is rare -- it only happens in less than 0.5 percent of earthquakes -- which would explain why some witnesses have claimed they were caused by aliens.

Related storiesGovernment shutdown can't shake earthquake updatesGiant rooftop pendulums to cut quake shaking in Tokyo Apple, Samsung, others raise $32M after China earthquakeKFC Facebook message: There might be tsunami, but order chickenTsunami warning knocks out Zoho phone support The study's authors say the lights happen because of miniscule defects in the crystals of basalt and gabbro rocks. When these rocks are impacted with seismic activity, they let off electrical charges.

"When nature stresses certain rocks, electric charges are activated, as if you switched on a battery in the Earth's crust," Freund told National Geographic. "The charges can combine and form a kind of plasma-like state, which can travel at very high velocities and burst out at the surface to make electric discharges in the air."

While it seems like these lights would be a good warning system for upcoming earthquakes, Freund said the lights are too rare for predicting shifts in the Earth's tectonic plates. However, paired with other earthquake indicators, they could help with forecasting.

"If we see two, three, or four characteristic phenomena, then it looks like there might be an earthquake," he told National Geographic. While the earthquake lights are rare, he said, "If they are observed, let's watch out."

Here's a YouTube video of the lights seen before the 2008 earthquake in Sichuan, China:

Topics: Science and research Tags: electric charges, lights, Friedemann Freund, rift, NASA, Seismological Society of America, earthquake, UFO, rock

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Wearables are white-hot at CES 2014. So they're doomed, right?

Smartwatch will be in vogue at this year's show. Is that a bad thing for their makers?

(Credit:Sarah Tew/CNET)

LAS VEGAS -- This year's Consumer Electronics Show will see dozens upon dozens of wearable technology products vie to become this year's breakout device.

And most -- if not all -- will be forgotten in the coming months.

That's because when all the booths are taken down, the convention lights are dimmed, and the last of the tech executives board their flights, we all finally escape the reality-distortion field that is Las Vegas and CES.

See also: CES 2014: What to expect

A look back at past confabs shows that the hot item at CES is a leading indicator of failure for the rest of that year. Remember how 3D televisions were supposed to be all the rage? Or when ultrabooks were a thing? Not only does garnering hype at CES not guarantee success, it's become almost an omen of ill fortune.

This year, it's universally agreed upon that wearable tech is the trend for CES, which means there will be a lot of also-rans and me-too products alongside a few gems that may or may not get noticed. The Consumer Electronics Show is a hectic and frenetic place -- we have only so much time to devote to any given product.

Chances are, that blockbuster product won't be found at the show.

"I do believe that we will have wearables that break through to mainstream consumers this year, and I'll be watching for it at CES, but I'm not necessarily expecting to find it," said Avi Greengart, an analyst for Current Analysis.

A stroll down memory lane

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