Why the Universe Needs Dark Energy

Posted: April 20, 2016 by

Part 2 in our Dark Energy series.
Part 1: https://www.youtube.com/watch?v=xZTb6sfHEX8

Check out our sister channel Crash Course Physics to learn more about the basic foudations of Physics:
https://www.youtube.com/watch?v=ZM8ECpBuQYE&list=PL8dPuuaLjXtN0ge7yDk_UA0ldZJdhwkoV

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Now that we know the universe will continue to expand forever, we can begin to complete the first Friedmann equation, and determine the shape and geometry of our universe. At first glance, it would seem that the equation doesn’t quite add up, and that our universe is a hyperbolic plane. But when we add in the cosmological constant, the equation balances out, and we return to a flat universe.

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COMMENTS:

Deiter Meena
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Jack W
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Mr B
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