*** AntiGravity Propulsion ***
A Faster Stairway to the Stars
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Physics' Greatest Puzzles
Puzzle #8
#8. What is the resolution of the black hole information paradox?
According to quantum theory, information - whether it describes the velocity
of a particle or the precise manner in which ink marks or pixels are arranged
on a document - cannot disappear from the Universe.  : But the Physicists,
Kip Thorne, John Preskill and Stephen Hawking have a standing bet:
What would happen if you dropped a copy of the Encyclopaedia Britannica down a
Black Hole? It does not matter whether there are other identical copies
elsewhere in the Cosmos. As defined in physics, information is not the
same as meaning, but simply refers to the binary digits, or some other code,
used to precisely describe an object or pattern. So it seems that
the information in those particular books would be swallowed up and gone forever.
And that is supposed to be impossible.
Hawking and Thorne believe the information would indeed disappear and that quantum
mechanics will just have to deal with it. Preskill speculates that the
information doesn't really vanish: It may be displayed somehow on the
surface of the Black Hole, as on a cosmic movie screen.
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