Will the Universe Expand Forever? | Space Time | PBS Digital Studios

             



Will the Universe Expand Forever? | Space Time | PBS Digital Studios

Δημοσιεύτηκε στις 13 Απρ 2016

Will
the Universe continue to expand outward or will it succumb to gravity
and collapse upon itself? Find out in this episode of Space Time. Help
us win a Webby Award by voting here: https://pv.webbyawards.com/2016/onlin...

Get your own Space Time t-shirt at http://bit.ly/1QlzoBi

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Throughout
history, there has been much speculation about what the fate of the
universe would be. Many theorized that the universe would eventually
succumb to the pull of gravity, and reverse its expansion in what was
being called ‘The Big Crunch.’ However, with the help of mathematical
equations from Newton, Einstein, and Alexander Friedmann, we now have an
answer.

Special thanks to NAOJ and the European Southern Observatory for allowing usage of their photo of M83: http://apod.nasa.gov/apod/ap151008.html

Flourine production in lower mass stars: http://phys.org/news/2014-08-toothpas...
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Correction:
escape velocity = square root of (2GM/r)
- we accidentally left out the 2
_____________________

COMMENTS:

Henrique Rigitano
https://www.youtube.com/watch?v=6yLGe...

ReVenGe TheRedFireFox
[deleted]

Richard van der Linden
https://www.youtube.com/watch?v=6yLGe...

Mason Glaves
https://www.youtube.com/watch?v=6yLGe...

Rod Landaeta
https://www.youtube.com/watch?v=6yLGe...

______________________

Written and hosted by Matt O’Dowd
Made by Kornhaber Brown (www.kornhaberbrown.com)

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