Colosseum: Roman Death Trap Preview

Extras

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  This Tiny Moon Is a Volcanic Powerhouse

  Io’s intense volcanic activity defies all expectations.

  2:45
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  How a Walnut-Shaped Moon Help Shape Saturn’s Rings

  For millions of years, a tiny moon has made a significant impact on the structure of Saturn’s rings.

  2:35
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  Venus: The Planet With Battery Acid Clouds

  This is what it would be like to walk on the surface of Venus.

  3:27
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  Hurricanes Are Getting More Destructive

  Recent hurricanes blow away records for destruction, costing over a trillion dollars in 20 years.

  4:15
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  Why is Haumea Shaped Like an Egg?

  Most objects with a radius over 200 miles are spherical, but Haumea is an exception.

  2:30
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  Sir Arthur C. Clarke's Vision of the Computer-Dominated Future

  Watch this interview with Sir Arthur C. Clarke for The Mind Machine (1978.)

  1:39
• 

  Building Stuff: Boost It! Preview

  Is engineering humanity’s superpower? See how we can amplify our natural abilities in amazing ways.

  0:30
• 

  How Medieval Armorers Made Knights Bulletproof

  Knights and firearms clashed on the battlefield for over 200 years.

  2:15
• 

  How Do Hurricanes Form?

  Hurricanes are getting more intense, faster.

  1:02
• 

  Decoding the Universe: Quantum Preview

  Dive into the universe at the tiniest – and weirdest – of scales.

  0:30