Black Holes - Open Questions
http://edu-observatory.org/olli/BH/Week4.html



David Kaplan is not an Expert   (2+ min)
  https://www.youtube.com/watch?v=fCLLJ6-7ez0

Alan Lightman On Richard Feynman's Amazing Mind, Or How 
"Hawking Radiation" Could Well Be "Feynman Radiation"   (6+ min)
  https://player.vimeo.com/video/104516539


Wikipedia - Black Holes - Open Questions
  https://en.wikipedia.org/wiki/Black_hole#Open_questions
  https://www.quantamagazine.org/search?q[s]=Black%20Holes
  
Janna Levin on Seeing and Hearing Black Holes   (54+ min)  
  https://www.quantamagazine.org/janna-levin-on-seeing-and-hearing-black-holes-20200303/

Wikipedia - Entropy and thermodynamics
  https://en.wikipedia.org/wiki/Black_hole_thermodynamics

  In physics, black hole thermodynamics is the area of study
  that seeks to reconcile the laws of thermodynamics with the
  existence of black-hole event horizons. As the study of the
  statistical mechanics of black-body radiation led to the
  advent of the theory of quantum mechanics, the effort to
  understand the statistical mechanics of black holes has had
  a deep impact upon the understanding of quantum gravity,
  leading to the formulation of the holographic principle.


Black holes sometimes behave like conventional quantum systems 
  https://phys.org/news/2019-11-black-holes-conventional-quantum.html

  The physics of black holes remains an elusive chapter of
  modern physics. It is the sharpest point of tension between
  quantum mechanics and the theory of general relativity.
  According to quantum mechanics black holes should behave
  like other ordinary quantum systems. Yet, there are many
  ways in which this is problematic from the point of view of
  Einstein's theory of general relativity. Therefore, the
  question of understanding black holes quantum mechanically
  remains a constant source of physical paradoxes. The careful
  resolution of such paradoxes should provide us a clue as to
  how quantum gravity works. That is why the physics of black
  holes is the subject of active research in theoretical
  physics. 



Quantum Black Holes As Elementary Particles 
  https://arxiv.org/pdf/0812.5012.pdf

Wikipedia - Information loss paradox
  https://en.wikipedia.org/wiki/Black_hole_information_paradox#Postulated_solutions
  https://www.freedawn.co.uk/scientia/2015/04/10/proposed-resolution-for-the-black-hole-information-paradox/

  Shred a document, and you can piece it back together. Burn a
  book, and you could theoretically do the same. But send
  information into a black hole, and it's lost forever. That's
  what some physicists have argued for years: That black holes
  are the ultimate vaults, entities that suck in information
  and then evaporate without leaving behind any clues as to
  what they once contained.
  
The Most Famous Paradox in Physics Nears Its End  
  https://www.quantamagazine.org/the-black-hole-information-paradox-comes-to-an-end-20201029/

  In a landmark series of calculations, physicists have proved
  that black holes can shed information, which seems
  impossible by definition. The work appears to resolve a
  paradox that Stephen Hawking first described five decades
  ago.
  

Brian Greene -- What are black holes?  (1 min)
  https://www.youtube.com/watch?v=GjOZDKq66DE

Brian Greene -- What is Hawking Radiation?   (1+ min)
  https://www.youtube.com/watch?v=DC_IfDxXVbE

Brian Greene -- What Happens To Time Near A Black Hole?  (1+ min)
  https://www.youtube.com/watch?v=ZUcCTRrSJCE

Brian Greene -- Is it possible to create black holes here on 
earth?  (1+ min)
  https://www.youtube.com/watch?v=j_nv0s4fu1w


Book: The Black Hole War: My Battle with Stephen Hawking to 
Make the World Safe for Quantum Mechanics
Author: Leonard Susskind
  https://www.amazon.com/Black-Hole-War-Stephen-Mechanics/dp/0316016411/

  
Book: Black Holes and Time Warps: Einstein's Outrageous Legacy
Author: Kip S. Thorne
  https://www.amazon.com/Black-Holes-Time-Warps-Commonwealth/dp/0393312763
  



 
    sam.wormley@icloud.com