Is The Universe Infinite?

You might have heard someone say the universe is "flat" or is "infinite." What does that mean? More importantly, is it true? Do we know for sure? Find out in this installment of mind-melting physics.

But, even in a finite universe, do you still need infinity to explain the real world? Check out Looking Glass Universe's video to find out:
   • How real are the real numbers, really?  
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VIDEO ANNOTATIONS/CARDS

Is Math the Language of the Universe?
   • Is Math the Language of the Universe?  

How Far Away Is The Moon?
   • How Far Away Is The Moon?  
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HUGE THANK YOU TO THESE PATRONS:

** Andy Kirkham, Nikko Lai, Evgeny **
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EXTRA INFO LINKS

Veritasium on Observable Universe:
   • Misconceptions About the Universe  

MinutePhysics on Universe Size:
   • How Big is the Universe?  

PBS SpaceTime on Cosmic Inflation:
   • How Cosmic Inflation Flattened the Un...  

Vlogbrothers "No Edge" Video:
   • How Big is the Universe?  

Define Universe:
https://www.merriam-webster.com/dicti...
https://www.google.com/search?q=defin...

Cosmic Microwave Background:
https://en.wikipedia.org/wiki/Cosmic_...
https://en.wikipedia.org/wiki/Planck_...)
https://en.wikipedia.org/wiki/Comovin...

General Relativity Stuff:
http://map.gsfc.nasa.gov/universe/uni...
https://en.wikipedia.org/wiki/Friedma...
https://en.wikipedia.org/wiki/Friedma...
https://en.wikipedia.org/wiki/Scale_f...)

Topology:
https://en.wikipedia.org/wiki/Shape_o...
https://en.wikipedia.org/wiki/Genus_(...)
https://en.wikipedia.org/wiki/Homolog...

Occam's Razor:
https://en.wikipedia.org/wiki/Occam's...

SEFD Raisin Galaxy Simulator:
http://www.sefdstuff.com/raisingalaxy

Just For Fun:
   • Bee Gees - Edge of the Universe  
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STARTER COMMENTS

Infinite? - john michael:
   • Basics of Hertzsprung-Russell (HR) Di...  

Infinite? - Spaskiba:
   • Comment Responses: Relativity Series  

Infinite? - Pirate Persian:
   • Why is Light the Fastest Thing?  

Edge? - Anish Tiwari:
   • Why Doesn't Light Have Mass?  

Edge? - PokemonTom09:
   • What the HECK are Planck Units?  

Flat? - Abhijit Ghogre:
   • Видео  
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COMMENT RESPONSES

Moon Causing Tides - Antares:
   • How Far Away Is The Moon?  

Scale Distance to Stars - Kahandran:
   • How Far Away Is The Moon?  

FTL Travel - ThatMrTC:
   • How Far Away Is The Moon?  

Closer Moon Problems - Alexandro Ochoa:
   • How Far Away Is The Moon?  

Majora's Mask - Elliot Grey:
   • How Far Away Is The Moon?  

Moon Reflector - YouCanScienceIt:
   • How Far Away Is The Moon?  
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IMAGE CREDITS

Logo designed by: Ben Sharef

Stock Photos and Clipart
- Wikimedia Commons http://commons.wikimedia.org/wiki/Mai...
- Openclipart http://openclipart.org/
- or I made them myself...

Cosmic Microwave Background:
http://www.esa.int/Our_Activities/Spa...

Planck Satellite:
https://commons.wikimedia.org/wiki/Fi...

Horsehead Nebula:
https://commons.wikimedia.org/wiki/Fi...

German Two-Handed Sword:
https://commons.wikimedia.org/wiki/Fi...

Majora's Mask:
https://en.wikipedia.org/wiki/File:Th...
https://gamefaqs.akamaized.net/screen...