What happens to solar power when it isn't sunny? A simple question with an amazing answer.

"How does solar energy work when there's no sun?" has been a question for pretty much about as long as solar energy has been a thing.

Of course people wouldn't want solar panels on their houses if installing them meant that, come sunset, the movie they were watching suddenly shut off, forcing them to read by candlelight like colonial settlers. Making solar power a viable option, even when the sun sets or disappears behind some clouds, was one of the first things scientists and engineers had to figure out.

Photo by Andreas Rentz/Getty Images.


When the first devices that could capture the sun's energy were invented, they weren't very efficient.

Much like touch screens or video chatting or Dorito-flavored taco shells, solar power is one of those perfect ideas that took a while to get just right. Believe it or not, the earliest solar devices were introduced in the 1800s.

In 1878, Augustin Mouchot invented a device that could freeze water using the concentrated power of the sun. It was a cool experiment but not exactly reasonable or viable options for large-scale energy production.

No one wants this on the roof of their house. Photo via Wikimedia Commons.

Mouchot won a gold medal at the Universal Exhibition in Paris for his invention, but his device was gigantic, and coal was quickly becoming the go-to for efficient energy, so it didn't catch on.

The other downside to his invention? The solar-powered water-freezer only worked on (you guessed it) sunny days. But, that was 1878. Things have changed a lot since then.

Over the last century, the efficiency and feasibility of solar power has dramatically increased, and it's getting better every day.

Just look at this fun, easy-to-read chart!

OH GOD, MY EYES! Photo via National Renewable Energy Laboratory.

I know, I know, it's a lot to take in. Just know that it's showing you that since 1975, we've gotten better and better at efficiently converting the sun's rays into energy that can power our homes, businesses, and even a few cars and planes.

So how does solar energy keep providing power when the sun goes down?

The answer is pretty simple: storage.

Photo by Uriel Sinai/Getty Images.

Today's solar panels are designed to soak up more energy from the sun than we actually need and store it for later.

The way they do it is pretty amazing. Photons (aka light particles) hit the solar panel really hard — so hard that electrons (aka what electricity is made of) get knocked loose. Then the solar panel guides those loose electrons into a battery or superconductor that can store them. If an area has a reliable electricity grid, homeowners can just hook their solar panels right up to it. For them, nothing changes from their normal source of power except (usually) a smaller electricity bill.

A lot of people don't realize that going solar doesn't have to mean going "off grid," says Dan Whitson, solar manager for Green Audit USA in Long Island, N.Y.

"The grid is pretty reliable here, so battery options aren’t necessarily cost-effective on Long Island," Whitson explained over the phone. "But that’s something we have to explain to homeowners that, you know, you’re still going to be connected to the grid even though you’ve gone solar."

If there are solar panels on your roof, it's not like your PlayStation is plugged directly into them. The solar panels run into your regular power lines and help offset some of the energy cost, or they run into a box that will store the electricity, quite literally, for a rainy day.

Solar farms are power-plant-scale versions of this concept.

A solar power plant in China. Photo by STR/AFP/Getty Images.

They can be built in the middle of a desert where the sun is incredibly powerful and cloudy days are rare. The panels can even pivot automatically to follow the sun's path across the sky.

After the panels soak up as much energy as they can, the energy is transported to nearby cities. There's a solar farm in Austin, Texas, that produces enough power for 5,000 homes and offsets over 1 billion pounds of carbon dioxide emissions.

Oh and, yes, solar panels can still collect energy on cloudy days. They're just not as efficient about it.

That's because clouds don't block all the sunlight, just some of it. If you walk outside on a cloudy day and can still see, that's because there's still sunlight, even if it's a bit more muted than usual.

The sun is unstoppable. Photo via iStock.

That's where storage and the grid come in. Energy companies rely on the grid to offset any dips in production they might experience on a cloudy day.

"All of the reputable solar production calculators out there take in 20 to 30 years of weather data based on region," Whitson said. "So they can predict how much sun you’re going to get throughout the course of a year. Most projections are taking into consideration that it’s not going to be sunny every day."

Also, as previously mentioned, efficiency is one of the key things scientists are constantly trying to improve about solar panels.

"How does solar energy work when there's no sun?" is a simple question that cuts right to the core of a pretty huge idea.

It's the type of question that scientists, engineers, researchers, and experts around the world have to ask every single day in order to get better at what they're doing.

Photo by Ian Waldie/Getty Images.

It's the type of question that brought solar energy from an obscure experiment to a feasible source of electricity that powers millions of homes around the world.

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Should a man lose his home because the grass in his yard grew higher than 10 inches? The city of Dunedin, Florida seems to think so.

According to the Institute of Justice, which is representing Jim Ficken, he had a very good reason for not mowing his lawn – and tried to rectify the situation as best he could.

In 2014, Jim's mom became ill and he visited her often in South Carolina to help her out. When he was away, his grass grew too long and he was cited by a code office; he cut the grass and wasn't fined.

France has started forcing supermarkets to donate food instead of throwing it away.

But several years later, this one infraction would come back to haunt him after he left to take care of him's mom's affairs after she died. The arrangements he made to have his grass cut fell through (his friend who he asked to help him out passed away unexpectedly) and that set off a chain reaction that may result in him losing his home.

The 69-year-old retiree now faces a $29,833.50 fine plus interest. Watch the video to find out just what Jim is having to deal with.

Mow Your Lawn or Lose Your House! www.youtube.com

Cities

The world officially loves Michelle Obama.

The former first lady has overtaken the number one spot in a poll of the world's most admired women. Conducted by online research firm YouGov, the study uses international polling tools to survey people in countries around the world about who they most admire.

In the men's category, Bill Gates took the top spot, followed by Barack Obama and Jackie Chan.

In the women's category, Michelle Obama came first, followed by Oprah Winfrey and Angelina Jolie. Obama pushed Jolie out of the number one spot she claimed last year.

Unsurprising, really, because what's not to love about Michelle Obama? She is smart, kind, funny, accomplished, a great dancer, a devoted wife and mother, and an all-around, genuinely good person.

She has remained dignified and strong in the face of rabid masses of so-called Americans who spent eight years and beyond insisting that she's a man disguised as a woman. She's endured non-stop racist memes and terrifying threats to her family. She has received far more than her fair share of cruelty, and always takes the high road. She's the one who coined, "When they go low, we go high," after all.

She came from humble beginnings and remains down to earth despite becoming a familiar face around the world. She's not much older than me, but I still want to be like Michelle Obama when I grow up.

Her memoir, Becoming, may end up being the best-selling memoir of all time, having already sold 10 million copies—a clear sign that people can't get enough Michelle, because there's no such thing as too much Michelle.

Don't like Michelle Obama? Don't care. Those of us who love her will fly our MO flags high and without apology, paying no mind to folks with cold, dead hearts who don't know a gem of a human being when they see one. There is nothing any hater can say or do to make us admire this undeniably admirable woman any less.

When it seems like the world has lost its mind—which is how it feels most days these days—I'm just going to keep coming back to this study as evidence that hope for humanity is not lost.

Here. Enjoy some real-life Michelle on Jimmy Kimmel. (GAH. WHY IS SHE SO CUTE AND AWESOME. I can't even handle it.)

Michelle & Barack Obama are Boring Now www.youtube.com

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via EarthFix / Flickr

What will future generations never believe that we tolerated in 2019?

Dolphin and orca captivity, for sure. They'll probably shake their heads at how people died because they couldn't afford healthcare. And, they'll be completely mystified at the amount of food some people waste while others go starving.

According to Biological Diversity, "An estimated 40 percent of the food produced in the United States is wasted every year, costing households, businesses and farms about $218 billion annually."

There are so many things wrong with this.

First of all it's a waste of money for the households who throw out good food. Second, it's a waste of all of the resources that went into growing the food, including the animals who gave their lives for the meal. Third, there's something very wrong with throwing out food when one in eight Americans struggle with hunger.

Supermarkets are just as guilty of this unnecessary waste as consumers. About 10% of all food waste are supermarket products thrown out before they've reached their expiration date.

Three years ago, France took big steps to combat food waste by making a law that bans grocery stores from throwing away edible food.According to the new ordinance, stores can be fined for up to $4,500 for each infraction.

Previously, the French threw out 7.1 million tons of food. Sixty-seven percent of which was tossed by consumers, 15% by restaurants, and 11% by grocery stores.

This has created a network of over 5,000 charities that accept the food from supermarkets and donate them to charity. The law also struck down agreements between supermarkets and manufacturers that prohibited the stores from donating food to charities.

"There was one food manufacturer that was not authorized to donate the sandwiches it made for a particular supermarket brand. But now, we get 30,000 sandwiches a month from them — sandwiches that used to be thrown away," Jacques Bailet, head of the French network of food banks known as Banques Alimentaires, told NPR.

It's expected that similar laws may spread through Europe, but people are a lot less confident at it happening in the United States. The USDA believes that the biggest barrier to such a program would be cost to the charities and or supermarkets.

"The logistics of getting safe, wholesome, edible food from anywhere to people that can use it is really difficult," the organization said according to Gizmodo. "If you're having to set up a really expensive system to recover marginal amounts of food, that's not good for anybody."

Plus, the idea may seem a little too "socialist" for the average American's appetite.

"The French version is quite socialist, but I would say in a great way because you're providing a way where they [supermarkets] have to do the beneficial things not only for the environment, but from an ethical standpoint of getting healthy food to those who need it and minimizing some of the harmful greenhouse gas emissions that come when food ends up in a landfill," Jonathan Bloom, the author of American Wasteland, told NPR.

However, just because something may be socialist doesn't mean it's wrong. The greater wrong is the insane waste of money, damage to the environment, and devastation caused by hunger that can easily be avoided.

Planet

The world is dark and full of terrors, but every once in a while it graces us with something to warm our icy-cold hearts. And that is what we have today, with a single dad who went viral on Twitter after his daughter posted the photos he sent her when trying to pick out and outfit for his date. You love to see it.




After seeing these heartwarming pics, people on Twitter started suggesting this adorable man date their moms. It was essentially a mom and date matchmaking frenzy.

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