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What Is the Shelf Life of Donated Eyes?
Whole eyes can be donated for both research and education purposes, but the various tissues in donated eyes can be used to repair the eyes of living patients.
BIG QUESTIONS
If March 15 Is the Ides of March, What Does That Make March 16?
The Romans referred to the days of the month by their relation to the 'Kalends,' the 'Ides,' and the 'Nones.' If Caesar had been killed any other day, his famous warning might have sounded much less ominous.
Why Has More Than One Person Solved Einstein's Equations?
Unlike simple equations like the quadratic equation, most equations do not have nice, simple, general solutions.
Do Flight Attendants Know When There's an Air Marshal on Their Plane?
There's not a Federal Air Marshal on every flight, but there is a specific protocol that must be followed when an armed law enforcement is flying the friendly skies.
Why Do People Toss Beads During Mardi Gras?
Each year, more than 1 million people descend on New Orleans for Mardi Gras, an organized parade of debauchery and alcohol-induced torpor where plastic beads are tossed as a kind of currency.
Why Do We Say 'Bless You' When Someone Sneezes?
Humans have been conditioned to say "bless you" after someone has sneezed for centuries. Why do we do it?
What's the Difference Between a Button-Up and a Button-Down Shirt?
You'd be forgiven for thinking the two terms are interchangeable, but they actually refer to two different styles of shirt.
Why Are Bots Unable to Check "I Am Not a Robot" Checkboxes?
Online bots can wreak all sorts of havoc. So how complicated can it really be for them to check one little checkbox?
Why Are the Academy Awards Statuettes Called 'Oscars'?
In 2013, the Academy Awards were officially rebranded as simply The Oscars, after the famed statuette that winners receive.
Why Do Bats Hang Upside Down?
Bats aren't the only animals that engage in certain activities while hanging upside down, but they're the only mammals capable of powered flight—which partly explains their topsy-turvy behavior.
What's the Difference Between Tequila and Mezcal?
Tequila is always mezcal, but mezcal isn't always tequila. (And only one of them can come with worms, although it isn't exactly encouraged.)
Full vs. Queen Mattress: What's the Difference?
A quick shopper's guide for telling the difference between queen and full mattresses, two of the most popular bed sizes.
Do Mission Control Personnel Go Through as Many Simulations as Astronauts?
Mission control personnel go through a lot more simulations than astronauts. And they don't always go according to plan …
How Many Light Years Away From the Sun Are We?
Astronomical distances are very specific, but estimating lights years without a calculator isn't impossible (even if there are dozens of zeros involved).
What's the Difference Between Hotels and Motels?
You should probably understand the distinction between hotels and motels before booking your stay—and the answer is in etymology.
Why Do We Use a Groundhog to Forecast the Weather?
Punxsutawney Phil—the rodent version of Al Roker—gets trotted out every February to assess our chances of a long winter. Who gave him his meteorology degree?
What Do Pilots Use to Detect Turbulence?
There are three main factors that can help forecast turbulence.
Why Do Bars Sell Pickled Eggs?
You can thank the Germans.
Why Does Wine Only Stain Some People's Teeth?
If you can drink red wine without staining your teeth, you're one of the lucky ones.
What is a Polar Vortex?
The polar vortex is famous for blasting arctic air south to the U.S. But what exactly is happening here?
In What Field Was Dr. Martin Luther King Jr. a Doctor?
Martin Luther King Jr. earned a doctorate in systematic theology from Boston University in 1955. In 1989, archivists working with The Martin Luther King Papers Project discovered that King’s dissertation suffered from what they called a “problematic use o
