Weather Ch. - Secrets of the Earth Series 1 (2013) Part 5 Gravity

Secrets of the Earth Series 1

“Secrets of the Earth” explores our planet with the same sense of awe and wonder normally reserved for alien worlds. Computer graphics, visual analogies and expert scientists combine to reveal amazing, little-known aspects of the world, from canyons of gravity that warp space and time to rain triggered by cosmic rays.

Part 5 Gravity

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

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