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LECTURE 27
Big Bang Cosmology
Ch 12, pp 150-156. Note the switched order of this and the next reading.
1. Expanding Universes in 1,2,3 Dimensions
2. Big Bang Cosmology
3. Three (Now Four!) Pillars of the Big Bang Theory
There is an infinite number of possible universes, and as only one of them
can be actual, there must be sufficient reason for the choice of God, which
leads Him to decide upon one rather than another.
The fabric of the world has its center everywhere and its circumference
nowhere.
For I can end as I began. From our home on earth we look out into the
distances and strive to imagine the sort of world into which we are born.
Today we have reached far out into space. Our immediate neighborhood we
know intimately. But with increasing distance our knowledge fades...until
at the last dim horizon we search among ghostly errors of observations for
landmarks that are scarcely more substantial. The search will continue. The
urge is older than history. It is not satisfied and it will not be
suppressed.
I cannot deny the feeling of unreality in writing about the first three
minutes as if we really know what we are talking about.
A pair of pigeons was roosting up in the small part of the horn where it
enters the warm cab. They had covered the inside with a white material
familiar to all city dwellers. We evicted the pigeons and cleaned up their
mess, but obtained only a small reduction in antenna temperature.
This is the way the world ends
Please email any questions, comments, or suggestions to Professor Bernice Durand, bdurand@theory3.physics.wisc.edu. Revised October 22, 1997.
Images and layout © 1997, Shane Hamilton |