The Biggest Ideas in the Universe | Q&A 22 - Cosmology

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 #22, " Cosmology." We talk mostly about how the Friedmann equation works, and what the Big Bang really means.

My web page: http://www.preposterousuniverse.com/

My YouTube channel: https://www.youtube.com/c/seancarroll

Mindscape podcast: http://www.preposterousuniverse.com/podcast

The Biggest Ideas playlist: https://www.youtube.com/playlist?list=PLrxfgDEc2NxZJcWcrxH3jyjUUrJlnoyzX

Blog posts for the series: http://www.preposterousuniverse.com/blog/category/biggest-ideas-in-the-universe/

Background image: https://www.spacetelescope.org/images/heic0611b/

#science #physics #ideas #universe #learning #cosmology #philosophy

Видео The Biggest Ideas in the Universe | Q&A 22 - Cosmology канала Sean Carroll