What is Physical Information?

A lot of physicists talk about "information" and just assume you'll figure out what it means by context... probably because they don't actually understand it. Hopefully, this video will fix all that! We'll talk about how physical information fixes a few relativity problems as well as how it relates to entropy and digital information.
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VIDEO ANNOTATIONS

Why is Light the Fastest Thing?
http://youtu.be/Vmi_h5A8B2k

Why Does Entropy Even Matter?
http://youtu.be/qQhv3YhiJ98

The Uncertainty Principle:
http://youtu.be/skPI-BhohR8

Spacetime Diagrams:
http://youtu.be/c0NuaATdzDE

What the HECK is Light?!
http://youtu.be/m2-UJAEJzcc
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LINKS TO COMMENTS

Abhijit Ghogre - Expanding Universe:
https://www.youtube.com/watch?v=C9OGc-_hT0s&lc=z13bxhdqovynhtbne22xixlh4uuojdrm1

Przemyslaw Szymusik - Sky Motion:
https://www.youtube.com/watch?v=KAmmb-4Ov40&lc=z13bt3w4mlquxdef422ocbviuzafgphkj
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EXTRA INFO LINKS

Logrithmic Universe Image:
Pablo Carlos Budassi [Unmismoobjetivo]
https://commons.wikimedia.org/wiki/File:Observable_universe_logarithmic_illustration.png

Veritasium and Vsauce on Randomness:
https://youtu.be/sMb00lz-IfE
https://youtu.be/9rIy0xY99a0

Entropy:
https://en.wikipedia.org/wiki/Entropy_(statistical_thermodynamics)
https://en.wikipedia.org/wiki/Second_law_of_thermodynamics
https://en.wikipedia.org/wiki/History_of_entropy
https://en.wikipedia.org/wiki/Statistical_mechanics

Speed of Information:
https://en.wikipedia.org/wiki/Physical_information
https://en.wikipedia.org/wiki/Faster-than-light
https://en.wikipedia.org/wiki/Speed_of_light
http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/measure_c.html
https://en.wikipedia.org/wiki/Speed_of_gravity
https://en.wikipedia.org/wiki/R%C3%B8mer%27s_determination_of_the_speed_of_light
https://en.wikipedia.org/wiki/Christiaan_Huygens#Optics

Information Theory:
https://en.wikipedia.org/wiki/Information
https://en.wikipedia.org/wiki/Information_theory
https://en.wikipedia.org/wiki/History_of_information_theory
https://en.wikipedia.org/wiki/Entropy_in_thermodynamics_and_information_theory
https://en.wikipedia.org/wiki/Entropy_(information_theory)

1948 Paper(s) on Information:
https://en.wikipedia.org/wiki/A_Mathematical_Theory_of_Communication
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6773024
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6773067

Astronomy:
https://en.wikipedia.org/wiki/Betelgeuse
https://en.wikipedia.org/wiki/Andromeda_Galaxy
https://en.wikipedia.org/wiki/Great_Debate_(astronomy)

Star Chart by Dan Bruton
http://www.midnightkite.com/

History of Photography:
https://en.wikipedia.org/wiki/History_of_photography
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IMAGE CREDITS

Logo designed by: Ben Sharef

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

Logrithmic Universe Image:
Pablo Carlos Budassi [Unmismoobjetivo]
https://commons.wikimedia.org/wiki/File:Observable_universe_logarithmic_illustration.png

Morse Code Chart:
https://commons.wikimedia.org/wiki/File:International_Morse_code.png

Radio Tower:
https://commons.wikimedia.org/wiki/File:Maedayama_North_radio_tower_4.jpg

Visible Light Signals:
https://commons.wikimedia.org/wiki/File:Seaman_send_Morse_code_signals.jpg

Hubble Telescope:
https://commons.wikimedia.org/wiki/File:Hubble_01.jpg

Oldest Photograph:
https://commons.wikimedia.org/wiki/File:View_from_the_Window_at_Le_Gras,_Joseph_Nic%C3%A9phore_Ni%C3%A9pce.jpg

Sombrero Galaxy:
http://hubblesite.org/newscenter/archive/releases/2003/28/image/a/

Green Lantern:
http://orig09.deviantart.net/c204/f/2014/281/a/1/dc_green_lantern_corps__willpower__by_arcentreaux-d824x92.png

Images of People:
https://commons.wikimedia.org/wiki/File:Ole_R%C3%B8mer_%28Coning_painting%29.jpg
https://commons.wikimedia.org/wiki/File:Christiaan_Huygens.jpg
https://commons.wikimedia.org/wiki/File:Lemaitre.jpg
https://commons.wikimedia.org/wiki/File:Clausius.jpg
https://commons.wikimedia.org/wiki/File:Boltzmann2.jpg
https://commons.wikimedia.org/wiki/File:Josiah_Willard_Gibbs_-from_MMS-.jpg
https://commons.wikimedia.org/wiki/File:J.J_Thomson.jpg
https://commons.wikimedia.org/wiki/File:Ernest_Rutherford_LOC.jpg

Видео What is Physical Information? канала The Science Asylum