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What’s the Source of Energy That Powers the Human Brain?
Sugar's a big part of it.
BIG QUESTIONS
What Does a U.S. Ambassador Really Do?
The answer depends a lot on whether you bought your way into the job.
Do Carbonated Drinks Go Flat Quicker on Their Sides?
From Coca-Cola to carbonated water, there isn't a fizzy drink around that tastes better once it's gone flat.
When Is the Best Time to Poop?
At least according to one bowel expert.
Why Is Bacon Sometimes Green?
It looks like something out of a sci-fi movie, but it's perfectly normal.
What's the Difference Between "Jr." and "II"?
Robert Downey Jr. and Sammy Davis Jr. are arguably two of the biggest celebrities ever to rock nominal suffixes—but why aren't they Robert Downey II and Sammy Davis II?
Why Don't Vultures Eat Live Prey?
Just like undertakers have the world’s most secure job, vultures have the world’s most secure food source.
Why Do I Have to Put My Phone in Airplane Mode?
It comes down to the possibility of a split second of interference.
What Are Those White Marks on Your Fingernails?
Those white spots you sometimes get on your fingernails? Totally normal. Usually.
Why Do Some Sections of Sidewalk Have Bumps?
For some pedestrians, they're essential to getting around.
What Is an Ambivert?
You, probably.
How Were Hieroglyphics Deciphered?
It was a tricky task!
Why Are There Only 28 Days in February?
Some believe February once boasted 29 days and that Augustus Caesar stole a day so he could add it to August, which was named for him. (If there’s a month named after you, why not milk it?) But that’s a myth.
How Are Supreme Court Justices Chosen?
Since George Washington’s first appointment, 112 people have served on the highest court in the land. With the recent death of Antonin Scalia, that number will soon rise to 113.
How Do Refugees Get Vetted?
It takes years, and you can be denied at every turn.
If the Universe Is Expanding, What Does It Expand Into?
The universe doesn't have to be expanding into anything in order to expand.
Why Are McDonald's McFlurry Machines Always Down?
A possible explanation for why your local McDonald's can't serve up the soft-serve treat.
What Happens to Usain Bolt's Stripped Olympic Medal?
When an athlete loses a gold medal, do they actually have to give it back?
How Are Oscar Nominees Chosen?
The voting process that determines the Oscar nominees is a long and complicated undertaking that involves approximately 8000 voting members and hundreds of eligible films and filmmakers.
What Really Happens When You Swallow Your Gum?
A new video from the American Chemical Society breaks down the science of a substance that we can't break down.
When Did U.S. Presidents Start Using Speechwriters?
Warren G. Harding was the first president with an official speechwriter, but even George Washington’s famous farewell address was prepared with the assistance of James Madison—five years before he delivered it.
How Do "Skinny" Mirrors Work?
All it takes is a slight curve in the glass.