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Harley Quinn is known for her outgoing personality (amongst other things). What % of Harley are you? Let's find out!

Hammers come in a different varieties and head sizes. Learn about the most common - claw hammers - and many others on this page.

There are two main digital systems in the U.S. One is generically known as "digital service," and the other is clearly branded as "PCS."

Scientists have figured out why some objects stick more to each other. And it's a very cool trick.

It's a phrase appropriate to Thanksgiving as well as other times of the year. But the most popular origin story has a disturbing explanation.

The two different types of alcohol are commonly used in hand sanitizer today. But does one work better than the other?

HowStuffWorks learns more about the 'music' made ancient rock arch formations in Utah and other places.

Great museums of art or natural history are a delight, but museums of parasites, quack medicine and other weirdness are every bit as wonderful.

Broccoli boasts more nutrients than any other vegetable. Find out more about this flavorful, essential vegetable.

The lemon shark isn't as aggressive as some other sharks and it isn't quite as yellow as its name suggests.

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