The Unity of the Universe via @BrainPickings

Copernicus’s revolutionary heliocentric model of the universe, one of 100 diagrams that changed the world

“We want to achieve a simpler understanding of nature. And the path to simplicity is unification. Think of Newton, who discovered that the planets follow the same laws as a stone falling to the ground. So there aren’t separate natural laws for the heavens and earth, as people had thought up to that point — only gravitation, which applies everywhere. That was a great step forward.


[A beautiful theory of nature is] one in which the connections arise inevitably. Everything fits together, and if you try to change even a tiny part, the whole edifice collapses. Such theories exist: Just think of quantum mechanics, which describes the dynamics of atoms and elementary particles.”

– Steven Weinberg


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