Tag Archives: Black Holes

No-Hair Theorem

Posted on February 17, 2016 by PlatoHagel

The no-hair theorem postulates that all black hole solutions of the Einstein-Maxwell equations of gravitation and electromagnetism in general relativity can be completely characterized by only three externally observable classical parameters: mass, electric charge, and angular momentum.[1] All other information … Continue reading →

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Black Hole Memory

Posted on September 3, 2015 by PlatoHagel

 Malcom J. Perry “Black Hole Memory” *** See Also: Backreaction: More about Hawking and Perry’s new proposal to solve the black hole information loss problem Dialogos of Eide

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Peering into a Blackhole

Posted on June 10, 2015 by PlatoHagel

See:Peering Into a Blackhole Dialogos of Eide

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Interstellar Preview Trailer

Posted on October 29, 2014 by PlatoHagel

See : Interstellar – Trailer – Official Warner Bros. UK    *** See also: Interstellar: Traversing the Wormhole Entanglement = Wormholes Wormhole Dialogos of Eide

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Black Holes, String Theory and the Fundamental Laws of Nature with Andrew Strominger

Posted on October 19, 2014 by PlatoHagel

What are black holes? What are they made of? What is string theory? Is everything we see just vibrations of strings? How are string theory and black holes related? What are the fundamental laws of Nature? For decades, since the … Continue reading →

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Black holes, quantum information, and the foundations of physics

Posted on June 25, 2014 by PlatoHagel

Volume 66, Issue 4, April 2013 Quantum mechanics teaches that black holes evaporate by radiating particles—a lesson indicating that at least one pillar of modern physics must fall. See: Black holes, quantum information, and the foundations of physics by Steven … Continue reading →

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Catching Black Holes on the Fly

Posted on September 7, 2013 by PlatoHagel

Black Holes Shine for NuSTAR Image Credit: NASA/JPL-Caltech NASA’s black-hole-hunter spacecraft, the Nuclear Spectroscopic Telescope Array, or NuSTAR, has “bagged” its first 10 supermassive black holes. The mission, which has a mast the length of a school bus, is the … Continue reading →

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How to Find Black holes with Lasers

Posted on August 29, 2013 by PlatoHagel

In February 2013 I was invited by the Institute of Physics to give a lecture in the famous lecture theatre of the Royal Institution of Great Britainas part of their Physics in Perspective series. I was to expect about 400 … Continue reading →

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NuStar: Blackhole Hunter

Posted on August 16, 2013 by PlatoHagel

NuSTAR is opening a new window on the Universe by being the first satellite to focus high-energy X-rays into sharp images. NuSTAR’s high-energy X-rays eyes see with more than 100 times the sensitivity of previous missions that have operated in … Continue reading →

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Will Quantum Gravity Get Us to the Stars?

Posted on August 8, 2013 by PlatoHagel

The Foundational Questions Institute (FQXi) 2nd International Conference in Ponta Delgada, Azores. July 7-12, 2009. Topics include cosmology, astrophysics, gravity, quantum gravity, quantum theory, and high-energy physics. http://www.fqxi.org/ The Meduso-Anthropic Principle is a speculative theory by Louis Crane (1994). The … Continue reading →

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