Knowledge

First, the ocean recedes dramatically from the shore, then the tsunami appears, looking less like a breaking wave than a...

Check out five common misunderstandings about how our eyes work.

The morning is probably no one's favorite part of the day, particularly if you stayed up the night before to...

Chemicals, contaminants, pollution, price: new reasons to rethink what you drink and beware of bottled water.

These simple rhymes and mnemonic devices can help you recall everything from the alphabet to the Wonders of the World.

These new discoveries will save countless lives.

The dimples on a golf ball serve a greater purpose than just making it look cute—no ifs, ands, or putts.

Contrary to popular belief, escalator brushes are not actually for cleaning your shoes.

Learning about Black History Month can be inspirational, and the quotes below are sure to move and motivate you

Sound smarter by knowing when to use discreet vs. discrete. These handy tips will help you keep them straight!

Women's shirts have buttons on the left, while men's have them on the right. But it's not about which hand...

July 11 is Free Slurpee Day! Get the scoop on the famous drink before that brainfreeze sets in.

Think you know a thing or two about the past? Put your smarts to the test with these history trivia...

Challenge yourself with these optical brainteasers. If you're feeling super sharp, up the ante: 45 seconds for each puzzle. Game...

The CDC recommends that vaccinated people almost everywhere wear masks in indoor public places. Here's why it's a good idea.

The "12 Days of Christmas" song has probably gotten stuck in your head a whole bunch, but have you given...