The study of cosmology can be difficult
for the layman to follow, because the written works of
astrophysicists and cosmologists are often heavily interspersed with
advanced mathematical and technical explanations.
However, I believe that every such
(well-studied) scientist has a fundamental view of how the universe
was formed, and a basically understandable explanation for various
phenomena in the universe. It is possible for the layman to extract
this information from their writings, as long as the writers are
honest about what they believe. And is necessary for the layman to do
this, because otherwise he cannot really understand what the
differences are between one cosmology and another. Understanding
these differences are important, because it helps us to understand
what the essence of these debates really are.
It is my goal, over time, to provide
brief summaries of the cosmologies of various scientists, creationist
and otherwise. I start here with Dr. Russell Humphreys, physicist and
creationist. I selected him first simply because his work, Starlight
and Time, was close at hand.
I have attempted to represent him as
accurately as possible, and so I have included afterwards an
extensive selection of quotations from his book supporting my
assessment. These are his views as presented in Starlight and Time
(Master Books, eighth printing) which is copyrighted 1994.
I was looking for his positions in
regard to ten issues: 1) astronomical distances; 2) the limitations
of the universe (or lack thereof); 3) General Relativity; 4) the age
of the universe; 5) the expansion of the universe; 6) the existence
of black holes; 7) the existence of white holes; 8) microwave
background radiation; 9) the red-shift phenomenon; 10) the formation
of the universe.
Regarding estimates of astronomical
distances:
In contrast to some creationists,
Humphreys believes that astronomers' estimates of the distance to far
off objects are fairly accurate, and generally correct within a
factor of two.
Regarding the limitations of the
universe:
Humphreys argues that the universe is
bounded, or has limits. This is in contrast to the belief that the
universe is infinite in size.
Regarding General Relativity:
Humphreys states that General
Relativity (GR) is a well-established theory confirmed by a large
amount of experimental evidence. GR plays a very important role in
his understanding of how the universe was formed.
Regarding the age of the universe:
The primary purpose of his book is to
provide a possible solution to the "distant starlight" problem of
creationism. He attempts to demonstrate that, because of GR, it is
possible for the universe to be only thousands of years old from the
relative reference frame of earth, while billions of years could have
passed for distant objects within their relative reference frames.
Regarding the expansion of the
universe:
Humphreys believes that the universe
has expanded by a factor of at least 1000. It is an important part of
his understanding of the formation of the universe that the cosmos
has expanded, rather than contracted.
Regarding black holes:
He states that black holes are a direct
prediction of GR, and that astronomers have ample observational
evidence for the existence of black holes.
Regarding white holes:
He states that white holes are also a
phenomenon allowed by GR, and proposes that the boundary of a white
hole played a part in the formation of the universe and explains some
of the characteristics of the universe which we see today.
Regarding microwave background
radiation:
Humphreys sees microwave background
radiation to be a result of the "stretching of space" that
occurred when God formed the universe. The wavelengths of heat waves
were "stretched out" as a relativistic consequence of this
stretching of space.
Regarding
red shifts:
The
red shift phenomenon is considered to be a result of the expansion of
space during the fourth day of the Biblical creation week. Light
waves were stretched out relativistically and their wavelengths were
shifted.
Regarding the formation of the
universe:
A literal reading of the six days of
creation from the book of Genesis is considered to be an accurate
historical record of how the universe was formed. He provides a
"possible scenario" in the second chapter of his book which
attempts to fill in some of the more specific details of the event.
You will need to read the chapter yourself to get all the details.
Basically, though, he suggests that God starts with a enormous sphere
of water as his "deep" (Genesis 1.2) and throughout the
Creation week he rapidly expands 3D space. Meanwhile, an event
horizon (GR) is rapidly shrinking. When God forms the stars and other
galaxies on the fourth day of creation, the expansion of space and
shrinking of the event horizon allows billions of years of aging to
occur in galaxies distant from the earth, and causes some of the
phenomenon we observe today such as red shifts and microwave
background radiation.
And now, the quotations:
Some laymen pondering this question
wonder if the astronomers' estimates of distances might be greatly in
error. I don't think so. Astronomers have have dozens of methods for
estimating such distances, all of which generally agree with on
another. . . .I am convinced that the large distances are generally
correct, at least within a factor of two or so. (page 10)
What if we begin our calculations with
the opposite assumption, equally scientifically valid, namely that
matter in the universe has a
center and an edge (is bounded)? This makes more common sense and is
also Scripturally far more appropriate. When we feed in this, plus
the same observations, into general relativity, quite a different
cosmology falls out. (21)
General relativity (GR) has been
well-established experimentally, and is the physics framework for all
modern cosmologies. According to GR, gravity affects time.
Clocks at a low altitude should tick more slowly than clocks at a
high altitude--and observations confirm this effect, which some call
gravitational time dilation.
(11)
What
this new cosmology shows is that gravitational time distortion in the
early universe would have meant that while a few days were passing on
earth, billions of years would have been available for light to
travel to earth. It still means that God made the heavens and earth
(i.e., the whole universe) in six ordinary days, only a few thousand
years ago. But with the reality revealed by GR, we now know that we
have to ask--six days as measured by which clock?
In which frame of reference? The mathematics of this new theory shows
that while God makes the universe in six days in the
earth's reference frame ("Earth
Standard Time," if you like), the light has ample time in
the extra-terrestrial reference frame
to travel the required distances. (13)
In a
bounded universe, clocks in different places can tick (or register
time) at drastically different rates. So which set of clocks is the
Bible referring to in Genesis 1, or in Exodus 20:11, when it says
that God made the universe in six ordinary weekdays? . . . .God's
intention was to define time in terms of the earth's
rotation and the earth's
motion around the sun, thus speaking of periods of time in our own
frame of reference. This is quite reasonable in a book intended to be
understood by people of widely different cultures and degrees of
scientific knowledge. Therefore, it looks as if the Bible is telling
us that God made the universe in six days E.S.T.--Earth Standard
Time. (29)
The shrinking event
horizon reaches earth early on the morning of the fourth day [of the
creation week]. During this ordinary day as measured on earth,
billions of years worth of physical processes take place in the
distant cosmos. In particular, gravity has time to make distant
clusters of hydrogen and helium atoms more compact. (37)
I am convinced that
the observations indicate that the universe has indeed expanded
significantly, by a factor of at least one thousand. (21)
Black holes are
more than just theoretical concepts. They are, first, direct
predictions of general relativity, which is backed by a great deal of
experimental evidence. In addition, most astronomers are convinced
they have observational evidence of possibly three star-sized black
holes, and very strong evidence for another one, millions of times
larger. As huge quantities of matter fall towards such black holes,
copious amounts of energy are given off. The giant one, recently
discovered, is at the center of the galaxy M87; astronomers know of
no cause other than a black hole to explain what they observe.
Black holes can be
very small or very large--it all depends on the amount of matter
packed within a given radius. The combined gravitational force of all
the mass inside a black hole is so strong that light rays cannot
escape--hence the name. (22-23)
The
event horizon of a white hole would be a one way boarder which
permits only outward motion
through itself. Matter and light waves would have to move out of a
white hole, but they could not go back in. Since the diameter of an
event horizon is proportional to the amount of matter inside it, the
event horizon would shrink as matter passes through it and out of the
white hole. . . .[Black and white holes] are a consequence of the
best knowledge we have today about gravity. The equations of GR
permit, but do not demand, the existence of white holes today.
(24-25)
The visible
universe was once inside an event horizon. This means it was once
either within a black hole or a white hole. We have seen that if it
were a black hole, it would be contracting, which is not indicated by
the evidence. Therefore:
The visible
universe was once inside a white hole. It may, however, have
commenced as a black hole before expansion started. . .If the
universe is not much bigger or much denser than what we can directly
observe right now. . .an event horizon can no longer exist. This
means that the event horizon has shrunk to zero radius sometime in
the past, meaning that an expansion of space continued at least until
the white hole ceased to exist.
So from all the
physics and astronomical data we now know, we can draw a
straightforward conclusion: If the universe is bounded, then sometime
in its past the universe must have expanded out of a white hole.
(25-26)
Day Two [of the
creation week]. . .By direct intervention. . .God begins stretching
out space, causing the ball of matter to expand rapidly, thus
changing the black hole to a white hole. He marks off a large volume,
the "expanse" ("firmament" in the KJV) within the deep,
wherein material is allowed to pull apart into fragments and clusters
as it expands, but He requires the "waters below" and the "waters
above" the expanse to stay coherently together.
Normal physical
processes cause cooling to proceed as rapidly as the expansion. Heat
waves are stretched out to much longer wavelengths as a relativistic
consequence of the stretching of space. Eventually these
stretched-out waves will become the cosmic microwave background
radiation. (34-35)
Early on the fourth
morning [of the creation week], God coalesces the clusters of atoms
into stars and thermonuclear fusion ignites in them. The newly-formed
stars find themselves grouped together in galaxies and clusters of
galaxies. As the fourth day proceeds on earth, the more distant stars
age billions of years, while their light also has the same billions
of years to travel to the earth. While the light is on its way, space
continues to expand, relativistically stretching out the light waves.
. .and shifting the wavelengths toward the red side of the spectrum.
Stars which are now farthest away have the greatest redshift, because
the waves have been stretched the most. This progressive redshift is
exactly what is observed. (37-38)