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Have You Seen This? Real-life fruit ninja with a drone
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This drone fruit ninja probably isn't the quickest way to chop fruit, but it is definitely the coolest way. Maybe try it out next time you need a fruit platter for a party. - photo by Mary Dalrymple
Mary Dalrymple
KSL.com
Published: Mar 1, 2017, 11:41 AM
FRUITVILLE Real talk: how many hours do you think you've spent (or wasted) playing Fruit Ninja?

The game isn't complicated, but it is addicting. And for some reason, virtually slicing fruit out of the air is completely satisfying. So what if you could play it in real life?

We've already seen one Utahn demonstrate what happens when you attempt to become a fruit ninja yourself, but what if you left the dirty work up to your handy drone? Drones are already doing pretty much everything else for us, so why not?

This video from the YouTube channel We Talk UAV shows what happens when you turn your drone into a fruit ninja, and it's pretty awesome. At one point in the video, the drone basically makes a perfectly chopped salad, so this might be my new favorite way of cutting fruits and vegetables.

Watch the video and maybe consider trying this method next time you need a fruit platter for a party. We can't guarantee it will go well, but you'll probably have fun in the process. Just make sure to keep a safe distance from the drone ninja those blades look sharp.
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
Herb Scribner
Deseret News
Published: Aug 13, 2018, 1:39 PM
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.