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Uber wants to build flying taxis. The skyports are straight out of Star Wars
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Uber is opening up a contest to find the third international city to debut its flying taxi technology, according to Reuters. - photo by Herb Scribner
Uber has opened up a contest to find the third city to debut its flying taxi technology, according to Reuters.

Uber plans to test the product in Los Angeles and Dallas and proposed Dubai as the third city, but delays forced the company to seek out another international location, company officials announced at the Uber Elevate Summit this week.

The company said it will consider cities with a metropolitan population of greater than 2 million people, with dispersed population hubs, an airport at least an hour away from the city center and which is willing to back pooled ride-sharing services, according to Reuters.

The UberAIR service hopes to launch demo flights in 2020. Flights between cities would begin in 2023.

Uber CEO Dara Khosrowshahi said launching the air taxis by that deadline is ambitious.

"There's a lot that has to come together," he said, according to Mashable.

He said the company wants to launch crafts that can fly 60 miles on a single charge at above 1,000 feet of altitude.

But it will be tricky to achieve intra-city travel since there are technical limitations, regulatory hurdles, and high costs for everyone: Uber, its partners, cities, and customers, according to Mashable.

Khosrowshahi said its a real challenge to get UberAir to that point.

Ubers architect and design partners showed off concepts of the skyports at the Elevate conference as well. The designs are beautiful, according to TechCrunch. Or, as The Verge said, theyre straight out of Star Wars."

But they might not be financially viable for many cities.

Some of the designs aim to retrofit existing buildings with landing pads, to help keep costs low and improve the projects chances of scaling citywide, The Verge reported. But most of the firms let their imaginations run wild as they sought to conceptualize what a futuristic flying taxi service would look like.

One of the structures has a beehive design that can hold about 900 passengers every hour. The structures use sustainable material that are easy on the environment.
Its toxic: New study says blue light from tech devices can speed up blindness
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A new study from the University of Toledo found that blue light from digital devices can transform molecules in your eyes retina into cell killers. - photo by Herb Scribner
It turns out checking Twitter or Facebook before bed is bad for your health.

A new study from the University of Toledo found that blue light from digital devices can transform molecules in your eyes retina into cell killers.

That process can lead to age-related macular degeneration, which is a leading cause of blindness in the United States, according to the researchs extract.

Blue light is a common issue for many modern Americans. Blue light is emitted from screens, most notably at night, causing sleep loss, eye strain and a number of other issues.

Dr. Ajith Karunarathne, assistant professor in the UT Department of Chemistry and Biochemistry, said our constant exposure to blue light cant be blocked by the lens or cornea.

"It's no secret that blue light harms our vision by damaging the eye's retina. Our experiments explain how this happens, and we hope this leads to therapies that slow macular degeneration, such as a new kind of eye drop, he said.

Macular degeneration is an incurable eye disease that often affects those in their 50s or 60s. It occurs after the death of photoreceptor cells in the retina. Those cells need retinal to sense light and help signal the brain.

The research team found blue light exposure created poisonous chemical molecules that killed photoreceptor cells

"It's toxic. If you shine blue light on retinal, the retinal kills photoreceptor cells as the signaling molecule on the membrane dissolves," said Kasun Ratnayake, a Ph.D. student researcher working in Karunarathne's cellular photo chemistry group. "Photoreceptor cells do not regenerate in the eye. When they're dead, they're dead for good."

However, the researchers found a molecule called alpha-tocopherol, which comes from Vitamin E, can help prevent cell death, according to Futurism.

The researchers plan to review how light from TVs, cellphones and tablet screens affect the eyes as well.

"If you look at the amount of light coming out of your cellphone, it's not great but it seems tolerable," said Dr. John Payton, visiting assistant professor in the UT Department of Chemistry and Biochemistry. "Some cellphone companies are adding blue-light filters to the screens, and I think that is a good idea."

Indeed, Apple released a Night Shift mode two years ago to help quell blue lights strain on the eyes, according to The Verge. The screen will dim into a warmer, orange light that will cause less stress on the eyes.