Why Hair Only Grows To A Certain Length

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Why Hair Only Grows To A Certain Length

No matter how hard some people try, they can't seem to grow their hair out to that coveted mermaid length. But why? Hair length is controlled by genetics, hormones, and even extreme stress. Discover the chemical cycle that determines your hair length in the following video, then learn more about hair.Is there something you're curious about? Send us a note or email us at editors (at) curiosity.com. And follow Curiosity on Facebook, Instagram and Twitter.

What Would You Hear If A Meteor Flew By?

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What Would You Hear If A Meteor Flew By?

While sound travels pretty darn fast, it's still slower than the speed of light. When you watch a colorful fireworks display, you expect for there to be a delay before you hear the explosions. The same should be true for hearing meteors, but it's not. Discover why you can see and hear meteors at the same time in the video below, then learn some cool facts about meteorites.Is there something you're curious about? Send us a note or email us at editors (at) curiosity.com. And follow Curiosity on Facebook, Instagram and Twitter.

The Origin Of The Male And Female Symbols

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The Origin Of The Male And Female Symbols

The male and female symbols are understood universally, but why? The symbols have actually denoted our sexes for a very long time, and the answer has to do with that old saying, "men are from Mars, women are from Venus." Find out in the following video, then discover more scientific differences between males and females.Is there something you're curious about? Send us a note or email us at editors (at) curiosity.com. And follow Curiosity on Facebook, Instagram and Twitter.

Who Is McDonald In McDonald's Restaurant?

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Who Is McDonald In McDonald's Restaurant?

You've probably eaten at McDonald's plenty, but did you ever wonder where the name McDonald's comes from? Well, here's the thing: the famous founder Ray Kroc didn't actually create McDonald's—the McDonald brothers did. Hear about the brothers in the video below, then learn more about the business.Is there something you're curious about? Send us a note or email us at editors (at) curiosity.com. And follow Curiosity on Facebook, Instagram and Twitter.

Do You Have The Right Personality For Long-Term Space Travel?

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Do You Have The Right Personality For Long-Term Space Travel?

The longest amount of time anyone has spent in space was roughly 438 days. Think you could handle the isolation? When put in confined spaces for long-term space travel, astronauts commonly become depressed and experience abnormal weakness, and a loss of energy. If you've dreamt of visiting Mars since childhood, we believe in you! But it's probably smart to set some realistic expectations. Uncover the "third quarter phenomenon" and NASA personality criteria in the following video, then learn more about the outer space lifestyle.Is there something you're curious about? Send us a note or email us at editors (at) curiosity.com. And follow Curiosity on Facebook, Instagram and Twitter.

Try These Science-Based Sales Techniques

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Try These Science-Based Sales Techniques

Have you ever walked into a sales pitch meeting commenting on the traffic or the yucky weather? What about bad-mouthing your competitors? If you're looking to persuade, there are a few science-backed sales techniques that can make a huge impact. Watch the following videos to learn some psychology-based sales tips.Is there something you're curious about? Send us a note or email us at editors (at) curiosity.com. And follow Curiosity on Facebook, Instagram and Twitter.