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Room temperature is a frame of reference.

Misunderstanding room temperature can have some surprisingly serious consequences.

Women were once exempt from serving on juries for fear they might take it too easy on defendants.

A person holds an American flag during a naturalization ceremony on the ship ‘Wavertree’ in New York City. The 20 candidates were from 17 countries and 5 of the candidates were current or former members of the U.S. military.

Could you pass the civics portion of the U.S. citizenship test? Applicants must answer six of 10 questions correctly—and it’s harder than it sounds.

The Jhelum River Bridge, part of the ancient Grand Trunk Road passing through Punjab, Pakistan.

Some of the world’s oldest roadways are only memories now—but many have been preserved as historic monuments or improved to handle today’s traffic.

People in high-risk groups may want to consider a measles vaccine booster.

If you’re in a high-risk group, you may want to consider getting a booster for full protection against measles.

In space, it isn’t just number one and done.

Coming up with a practical way of replicating the earthbound poop experience took many years, many engineers, and a whole lot of ingenuity.

Houses in Californian cities fetch a high price.

Find out where home prices are the lowest and highest across the U.S.

The transfer of power passes through a lot of people. Can you put them in order?

This is a scene you might recognize from every police procedural ever.

And how you can tell a two-way mirror from a standard one.

Alexander the Great (left) with his tutor, Aristotle.

The names of logical fallacies often double as common expressions—but they don't always mean the same thing.

The spelling is a bit peculiar at times, too.

How well do you really know the U.S. Constitution? Discover things you might not have realized about this influential document, like its dictator-friendly loophole.

Here’s a delightful fun fact for you: a group of bears is called a sleuth! Can you sleuth out the dog hiding among these polar bears?

Take a look at which pasta sauces are most common in American kitchens.

Believe it or not, soda containers can change how the product tastes.

Ever wondered why canned soda tastes different from one in a plastic bottle? Learn how container materials impact flavor.

The film that launched Natalie Portman's career wouldn't have starred the future Oscar winner at all if her parents had gotten their way.

Keep them cozy and happy with a clean bed.

Keep your dog‘s bed fresh and safe with these cleaning steps and tips.

All five answers to the questions below have something in common. Can you figure it out?

Aldi has a good reason for charging a quarter to use carts.

Find out why Aldi‘s quarter system is a smart way to save money and ensure carts are always available.

Skype is name that didn’t originate in the dictionary.

From Skype to Etsy to Woot, the tech world is adept at formulating brand names from unexpected sources.

We’ve celebrated International Women’s Day since 1911. From how it started to this year’s theme, here’s what you need to know about the event, which is held annually on March 8.