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  • From N-95 to Homemade: Different Types of Face Masks

    1,093 views 1 day ago
    The public doesn't need to wear heavy-duty respirators, but it's a smart idea to don a face mask or wrap a clean scarf around your nose and mouth if you're going into a crowded place during the COVID-19 outbreak. Read more about guidelines and CDC updates: https://www.livescience.com...... Show less
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  • Life's Little Mysteries Play all

    • Are Viruses Alive? - Duration: 103 seconds.

      • 2 years ago
      • 4,642 views
      Viruses are infectious, tiny and nasty. But are they alive?
    • How Much Water Do You Need to Drink? - Duration: 117 seconds.

      • 1 year ago
      • 549 views
      You are what you eat — but if you want to get literal about it, you are mostly what you drink. So, how much of that should be water?
    • Why Do We See in Color? - Duration: 114 seconds.

      • 1 year ago
      • 1,074 views
      Roses are red and violets are blue, but we only know that thanks to specialized cells in our eyes called cones.
    • What is a Nerve Agent? - Duration: 104 seconds.

      • 1 year ago
      • 1,260 views
      Simply put, nerve agents stop the central nervous system from communicating with the muscles, organs and glands it needs to keep your body's internal machinery running smoothly.
    • Is it Possible to Clone a Dinosaur? - Duration: 2 minutes, 21 seconds.

      • 1 year ago
      • 10,103 views
      Apologies to people keen on reviving extinct dinosaurs, but researchers have never recovered dinosaur DNA, which is necessary for cloning. But, intriguingly, they have found fragments of mystery DN...
    • Are You Right-Brained or Left-Brained? - Duration: 93 seconds.

      • 2 years ago
      • 1,352 views
      The left brain is supposed to be more creative and artistic, the right brain more organized and logical. But the real science says there's no such thing as right- or left-brain dominance.
    • Why Are Teeth Not Considered Bones? - Duration: 101 seconds.

      • 1 year ago
      • 3,454 views
      Teeth and bones are both hard, white and heavy with calcium, but that doesn't make them one and the same. From the way they look to how they heal, teeth are quite different from the body's bones.
    • Why Do Americans and Brits Have Different Accents? - Duration: 92 seconds.

      • 1 year ago
      • 6,129 views
      In 1776, whether you were declaring America independent from the crown or swearing your loyalty to King George III, your pronunciation would have been much the same. At that time, American and Brit...
    • How Far Away Is Lightning? - Duration: 110 seconds.

      • 1 year ago
      • 1,516 views
      Next time you're stuck in a thunderstorm, try this easy way to calculate how far away you are from lightning strikes.
    • What's the Oldest Tree on Earth? - Duration: 116 seconds.

      • 1 year ago
      • 1,678 views
      The planet's trees have seen plenty of history pass by their trunks. In fact, they began to populate Earth 385 million years ago, toward the end of the Devonian period. Considered living historical...
    • How Fast Does Hair Grow? - Duration: 82 seconds.

      • 1 year ago
      • 2,365 views
      The most oft-quoted average rate of human hair growth is 6 inches (15 centimeters) per year. However, the majority of studies measuring the rate of hair growth didn't take into account the race of ...
    • How Do Pineapples Grow? - Duration: 101 seconds.

      • 1 year ago
      • 16,057 views
      Contrary to what some people think, pineapples don't grow on trees — they grow out of the ground, from a leafy plant.
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  • Animals Play all

    Videos of the weird and wonderful animals found around the world.
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  • Science Nation Play all

    Science for the People: Surprising discoveries and fascinating researchers.
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