Why the Universe Tends Towards Disorder | Wonders of the Universe | BBC Earth Lab

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Over time, the universe tends towards disorder. But why? Well, the answer is so simple that it can be explained using a bucket of sand…

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Wonders of the Universe (2011)
The universe is almost impossible to comprehend - 13.7 billion years old, 93 billion light years across and filled with over 100 billion galaxies, each containing hundreds of billions of stars. This series explains the vast phenomena of deep space by re-examining the familiar on Earth.

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