Page 4 - The 'X' Chronicles Newspaper March/April 2018 Edition

4 Life & Death of Dr. Stephen Hawking

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Man Out Of Time: Life essentially impossible to observe.”
Wikipedia also correctly notes that, “In
and Death of Dr. Stephen [Einstein’s] general relativity, an event horizon
is a boundary in spacetime beyond which events
Hawking cannot affect an outside observer. In layman’s

Continued from Page 3 terms, it is defined as the shell of ‘points of no
return’, i.e., the points at which the gravitational
Black Holes pull becomes so great as to make escape
impossible, even for light. An event horizon is
most commonly associated with black holes.
A black hole is (most ordinary people know
Light emitted from inside the event horizon can
about black holes thanks to science fiction
never reach the outside observer. Likewise, any
movies) formed when a massive star exhausts
object approaching the horizon from the
its nuclear fuel and collapses under its own
observer's side appears to slow down and never
gravity. If the star is massive enough, no known
quite pass through the horizon, with its image
force can counteract the increasing gravity, and
it will collapse to a point of infinite density. becoming more and more redshifted as time
Before this stage is reached, within a certain elapses. This means that the wavelength is
radius (called the event horizon), light itself getting longer as the object moves away from
the observer. The traveling object, however,
becomes trapped and the object becomes
experiences no strange effects and does, in fact,
invisible. An event horizon is a theoretical
pass through the horizon in a finite amount of
boundary around a black hole beyond which no
proper time.
light or other radiation can escape. This term is
“Black-body radiation is the thermal If you would like to be a guest
also used to describe an event in time from
electromagnetic radiation within or surrounding
which there is no escape nor turning back, when on
it is too late.To use an analogy, when the famed a body in thermodynamic equilibrium with its THE ‘X’ ZONE RADIO
ship Titanic broke into two pieces after striking environment, or emitted by a black body (an
an iceberg and started to sink, there was no opaque and non-reflective body). It has a SHOW,
specific spectrum and intensity that depends
turning back. No way to save the ship. go to
only on the body's temperature, which is
As Wikipedia puts it, “The theory of
assumed for the sake of calculations and theory www.xzoneradiotv.com
[Einstein’s] general relativity predicts that a
to be uniform and constant. and click on the
sufficiently compact mass can deform
Makes sense, doesn’t it? Did you copy
spacetime to form a black hole. The boundary of “TO BECOME A GUEST”
that? While this is clear to brilliant minds like
the region from which no escape is possible is tab at the top of the page and our
called the event horizon. Although the event Hawking’s and other scientists who study
horizon has an enormous effect on the fate and cosmology and theoretical physics, it means booking producer,
circumstances of an object crossing it, no nothing to most of the rest of the world. STEPHANIE McCONNELL
locally detectable features appear to be
(Continued on Page 5) will contact you when your
observed. In many ways a black hole acts like
an ideal black body, as it reflects no light. completed form is received
“Moreover, quantum field theory in or
curved spacetime predicts that event horizons Contact Stephanie Directly at
emit Hawking radiation, with the same
spectrum as a black body of a temperature
inversely proportional to its mass. This smcconnell@xzbn.net
temperature is on the order of billionths of a
kelvin for black holes of stellar mass, making it