The Biggest Ideas in the Universe | Q&A 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 the Q&A video for Idea #6, "Spacetime." I try to explain what is meant by "photons do not experience time," and why the speed of light has the value it does. 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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