The Biggest Ideas in the Universe | 6. Spacetime
The Biggest Ideas in the Universe is a series of videos where I talk informally about some of the fundamental concepts that help us understand our natural world. Exceedingly casual, not overly polished, and meant for absolutely everybody. This is Idea #6, "Spacetime." Which, naturally, is about the major idea underlying special relativity -- that both space and time are different parts of one unified, four-dimensional spacetime. Learn the real reason why two twins age differently if one stays home and the other zips out near the speed of light. My web page: http://www.preposterousuniverse.com/ My YouTube channel: / seancarroll Mindscape podcast: http://www.preposterousuniverse.com/p... The Biggest Ideas playlist: • The Biggest Ideas in the Universe: Introdu... Blog posts for the series: http://www.preposterousuniverse.com/b... Background image: https://www.amazon.com/Spacetime-Geom... #science #physics #ideas #universe #learning #cosmology #philosophy #math #spacetime #relativity
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