Entropy
Entropy governs the direction of time, the fate of stars and the ultimate destiny of the universe. This forum covers the second law of thermodynamics, information entropy, the arrow of time, disorder in quantum systems and the deep connections between energy, order and chaos.
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What Is Entropy? The Arrow of Time and the Fate of the Universe
Drop a glass on the floor and it shatters. You never see the fragments spontaneously reassemble. Pour cream into coffee and it swirls into a uniform b...
Read MoreThe Observable Universe: What Lies Beyond the Cosmic Horizon?
When you look up at the night sky you are seeing a tiny fraction of what exists. The observable universe, the portion of the cosmos from which light h...
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