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# By regarding the expanding universe as a motion picture, you

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By regarding the expanding universe as a motion picture, you [#permalink]

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11 Dec 2010, 20:31
By regarding the expanding universe as a motion picture, you can easily imagine ―running the film backward.‖ If you do so, you find the universe getting smaller and smaller, and eventually you come to the moment when its whole mass is crammed into an infinitely dense point. Before that time it didn‘t exist, or at least it didn‘t exist in its present form.

Though there is some controversy about its exact age, most cosmologists would be inclined to agree that the universe has existed for about ten to twenty billion years. For scale, this can be compared to the four-and-a-half-billion-year age of the solar system, the time since the disappearance of the dinosaurs (sixty-five million years), and the age of the human race (about three million years).

The event that marked the beginning of the universe was christened the Big Bang; the term has now entered the vernacular of our culture. Originally the name referred only to the single initiating event; now, however, astronomers have come to use it to mean the entire developmental process of the birth and expansion of the cosmos.

The simple statement that the universe had a beginning in time is by now so obvious to astrophysicists that few give it a second thought. Yet it is a statement that has profound implications. Most civilizations embrace one of two opposite concepts of time. Linear time has a beginning, a duration, and an end; cyclical time, as its name suggests, continues around and around forever. In a universe that functions through cyclical time, the question of creation never arises; the universe always was and always will be. The minute you switch to linear time you immediately confront the vexing question not only of creation, but also of the Creator. Although there is no logical reason for the assumption, many people believe that if something comes into existence, it must do so in response to the actions of some rational being. Because of that belief, astronomers, even though they resist becoming involved in theological discussion, find themselves in one when they posit the Big Bang universe. It puts them squarely in the middle of an age-old debate.

One common misconception about the Big Bang that should be disposed of immediately is the notion that the universal expansion is analogous to the explosion of an artillery shell. The galaxies are not like bits of shrapnel speeding away from a central explosion. The raisin-in-dough analogy is a more satisfactory way to think about the whole process.

1. In the context of the passage, the phrase "age-old debate" (line 39) refers to:
A. the question of whether ―the Creator‖ created the universe.
B. the controversy over linear versus cyclical time.
C. the debate over the disappearance of the dinosaurs.
D. the disagreement over the movement of galaxies
E. whether God exists or not

2. According to the passage, which of the following statements is NOT true?
A. Many people believe that a rational impetus created the universe.
B. The solar system was created immediately after the Big Bang.
C. The universe is larger today than it was in the past.
D. Different societies measure time differently.
E. Most cosmologists believe the universe to be 10 to 20 billion years old

3. Why does the author compare the universe to a motion picture?
A. illustrate that the universe has operated according to linear time.
B. demonstrate that the universe is actually older than most astronomers believe.
C. show that galaxies were formed about five billion years ago.
D. prove that the universe was created by a rational being.
E. to show the analogy between ‗God‘ and a ‗director‘

OA's to follow after 2 posts.(It should be atleast a 4, But I dont find many on the RC forum )

OA's are
[Reveal] Spoiler:
A B A

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Last edited by mailnavin1 on 14 Dec 2010, 01:08, edited 1 time in total.
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11 Dec 2010, 22:02
IMO
1 - (E) Pretty obvious I guess [The minute you switch to linear time you immediately confront the vexing question not only of creation, but also of the Creator......... astronomers, even though they resist becoming involved in theological discussion, find themselves in one when they posit the Big Bang universe. It puts them squarely in the middle of an age-old debate.]

2 - (B)
A. Many people believe that a rational impetus created the universe. [many people believe that if something comes into existence, it must do so in response to the actions of some rational being]
B. The solar system was created immediately after the Big Bang.[No mention in the passage]
C. The universe is larger today than it was in the past. [By regarding the expanding universe....]
D. Different societies measure time differently. [Most civilizations embrace one of two opposite concepts of time. ]
E. Most cosmologists believe the universe to be 10 to 20 billion years old. [...most cosmologists would be inclined to agree that the universe has existed for about ten to twenty billion years]

3 - (A)
The author compares the universe to a motion picture and goes on to say that i you consider this "motion picture" backwards, you find the universe getting smaller and smaller, and eventually you come to the moment when its whole mass is crammed into an infinitely dense point. Before that time it didn‘t exist, or at least it didn‘t exist in its present form. So clearly, he considers it to be in linear time and not cyclical time.

I found Q.3 to be very tricky. Please post the OA soon or at least mail me the OA.
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11 Dec 2010, 22:59
I'd go with:

1. A --- I think the age old theological debate based on the context in para 4 is whether the Creator made the universe. That is the assumption drawn by most people as suggested by para 4 and by holding the same belief astronomers get involved in this debate... Theology is the study of the nature of God... "Creator" in caps I think refers to God, why else will it be in caps? Based on the context, to me it seems, the very assumption people hold, when held by astronomers gets them involved in the theological debate of whether the Creator made the universe...

i have a sneaky feeling it may still be E because of the use of the word "theological"... but some of these RC passages have strange answers.. and e seems too easy. also e doesn't say "the question of" whether God exists or not... not sure why that is omitted for this option alone... but the debate is over a "question" or a controversy or something...

2. B --- this is not mentioned in the passage

3. A --- it is form of "illustration" and by saying "it didn't exist" in para 1, the author supports the linear view of time
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11 Dec 2010, 23:18
I guess you are right about 1 -(A).. I'd still wait for the OA though..
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13 Dec 2010, 23:04
A,B, and A in 5 min 45 se. I agree with Gmat1011's explanations
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14 Dec 2010, 15:00
BBA, ughhh now i see why 1 should be A
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Re: Universe   [#permalink] 14 Dec 2010, 15:00
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