Goldilocks • 2013 • episode "S1E6" Secrets of the Earth

Category: Environment
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Venus and Mars show how inhospitable Earth could have been if things were just a little bit different.

Secrets of the Earth • 0 • 8 episodes •

Rain

Scientists are just now unlocking the amazing secrets of how rain is made; some raindrops form around micrometeorites from outer space, others are created by bacteria that float into the upper atmosphere.

2013 • Environment

Tsunamis

Which places on earth are poised to generate the next mega-tsunamis and the science of what happens as the wave emerges from open ocean and bears down on land.

2013 • Environment

Tides

Explore what drives the strange science behind places like Canada's Bay of Fundy-where water levels rise as much as 50 feet during high tide, and Alaska's Turnagain Arm, where 10-foot tall "bore waves" routinely wash in from the sea.

2013 • Environment

Volcanoes

Volcanoes have incredible effects on the weather; eruptions create localized weather phenomena like acid rain and violent volcanic lightning.

2013 • Environment

Gravity

NASA satellites have mapped Earth's gravity and discovered mysterious spots where gravity is weaker; how earthquakes change the planet's gravitational field.

2013 • Environment

Goldilocks

Venus and Mars show how inhospitable Earth could have been if things were just a little bit different.

2013 • Environment

Magnetic Shield

Earth's metallic core makes the planet a huge magnet, generating a magnetic field that protects us from dangerous cosmic rays and solar energy.

2013 • Environment

Blizzards

Blizzards; it's one of the Earth's most beautiful secrets until it turns into a storm that can bring entire cities to a grinding halt.

2013 • Environment

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Oceans - Into the Blue

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Why Can't We Predict Earthquakes

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Eurasia

Two hundred million years ago the continent we know as Eurasia - "the vast swathe of land that extends from Europe in the West to Asia in the East" - didn't exist.

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How Many People Can Live on Planet Earth

In a Horizon special, naturalist Sir David Attenborough investigates whether the world is heading for a population crisis.

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