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Black Holes
Part 1 of Paper
....hole, which is an extremely dense body, is
so strong that, if the body is large enough, nothing, including
electromagnetic radiation, can escape from its vicinity. The body is
surrounded by a spherical boundary, called a horizon, through which light
can enter but not escape; it therefore appears totally black.
Proper.... Part 2 of Paper
.... body has contracted within its
Schwarzschild radius, it would theoretically collapse to a singularity—that
is, a dimensionless object of infinite density.
Formation
Black holes may form during the course of stellar evolution. As
nuclear fuels are exhausted in the core of a star, the pressure associated
with their heat is no longer available to resist contraction of the core to
ever higher densities. Two new types of pressure arise at densities a
million and a million billion times.... |
| Number of words: 688 - Approximate pages: 3 |
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