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NASA Solves Solar Energy's Dust Problem

Here's a problem for solar energy you may not have thought about: dust. With many of the best sites for solar panels in deserts, the accumulation of dust on top of photovoltaic surfaces can block sunlight and reduce their efficiency by up to 80 percent.

Here's a problem for solar energy you may not have thought about: dust. With many of the best sites for solar panels in deserts, the accumulation of dust on top of photovoltaic surfaces can block sunlight and reduce their efficiency by up to 80 percent. And cleaning a huge field of solar panels by hand is a big task. Interestingly, NASA faced a similar problem with the Mars rovers, which had to be able to clean their own panels with no direct human help in a dusty environment.


And the NASA scientists solved it. The self-cleaning technology they came up with uses "a layer of an electrically sensitive material to coat each [solar] panel. Sensors detect when dust concentrations reach a critical level and then an electric charge energises the material sending a dust-repelling wave across its surface."

The same technology is expected to be commercially available within the year. Unexpected breakthroughs like this are one of the best reasons to keep a robust space program going.

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via David Leavitt / Twitter and RealTargetTori / Twitter

Last Friday, GOOD reported on an infuriating incident that went down at a Massachusetts Target.

A Target manager who's come to be known as "Target Tori," was harassed by Twitter troll David Leavitt for not selling him an $89 Oral-B Pro 5000 toothbrush for a penny.

He describes himself as a "multimedia journalist who has worked for CBS, AXS, Yahoo, and others."

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Communities
via David Leavitt / Twitter

Anyone who has ever worked in retail knows that the worst thing about the job, right after the pay, are the unreasonable cheapskates who "want to talk to your manager" to get some money off an item.

They think that throwing a tantrum will save them a few bucks and don't care if they completely embarrass themselves in the process. Sometimes that involves belittling the poor employee who's just trying to get through their day with an ounce of dignity.

Twitter is rallying around a gal named Tori who works at a Target in Massachusetts after she was tweet-shamed by irate chapekate, journalist, and Twitter troll, David Leavitt.

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Business
via Haldean Brown / Flickr

In a typical work day, people who smoke take more breaks than those who do not. Every few hours they pop outside to have a smoke and usually take a coworker with them.

Don Bryden, Managing director at KCJ Training and Employment Solutions in Swindon, England, thinks that nonsmokers and smokers should be treated equally, so he's giving those who refrain from smoking four extra days to compensate.

Funny enough, Bryden is a smoker himself.

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Health