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How Much Blood Is in the Human Body?
For a visual aid, try heading to the dairy aisle.
BIG QUESTIONS
Why Do Presidents Get Libraries?
The first renderings of Obama’s Chicago library have been released.
Why Do So Many Alien Planets in Movies Look the Same?
You can thank a union rule.
When Should I Start Saving for Retirement?
Presented by Discover.
Why Is There a Huge Cotton Ball in My Aspirin Bottle?
You’ll be happy to know that there’s a reason for all that pill packing material—and even happier to know that it’s a dying trend.
Why Are So Many Cartoon Characters Yellow?
The color is a favorite choice of animators for a very good reason.
Can One Take an Oath of Office With Anything Other Than a Religious Article?
Can One Take an Oath of Office With a Non-Religious Article?
Did Tracey Ullman Get Rich Off The Simpsons?
Springfield’s most beloved family didn’t start out with their own network show.
Who Took the Photo of the First Man on the Moon?
Today's Big Question.
Why is Trader Joe's Wine Cheaper Than Bottled Water?
At $1.99 a bottle, Charles Shaw wine is cheaper than an equivalent volume of Aquafina. We investigate.
Why Do Baseball Pitchers Stand on a Mound?
Why do baseball pitchers stand on a mound?
The Great Girl Scout Cookie Shortage of World War II
In 1943, the Girl Scouts brought terrible news to the homefront.
Why Can’t You Eat Grapefruit While Taking Certain Medications?
It’s all about your enzymes.
What Is the Difference Between a Crevice and a Crevasse?
One has to do with rocks, and another with glaciers.
Do Any Languages Besides English Have Homophones?
Sound-alike words are a worldwide source of confusion.
Is "Hangry" Real?
If you've noticed you get growly when your stomach is rumbling, you're not alone.
How Were Roads Cleared Before Snowplows?
We've come a long way since the days of snow shoes.
Why Can't We See Stars During the Day?
Blame it on the sun!
Why Do We Use the Same Voice to Talk to Babies and Dogs?
Nope, it's not because they're equally adorable.
What’s the Source of Energy That Powers the Human Brain?
Sugar's a big part of it.
Why Don't UPS Drivers Turn Left?
More than 90 percent of a UPS driver's turns are to the right. Why?
What Do Those Numbers on the Bottom of Plastic Bottles Mean?
The single-digit stamp helps determine the ultimate fate of your trash.