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USGS CMG InfoBank: Nebula Spin as They Contract

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Comment: 04:30 - 05:04 (00:34)
Source: Annenberg/CPB Resources - Earth Revealed - 2. The Restless Planet
Keywords: nebula

Our transcription: If the force of gravity between the gas and bits of cosmic dust is strong enough, this matter is gradually pulled together.
As the nebula contracts, it starts spinning with heat setting its particles in motion.
The further it condenses, the faster it rotates.
The process is something like what happens when a skater condenses himself by drawing in his arms until his body becomes a blur.

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