ive been wondering this for awhile,it was 1st pointed out in my mid.teens-not directly to me tho;
you believe that the big bang caused everything to expand & shoot off into space,&when they finally settled into their positions as we know them today,they started spinning around on their axis.(if thats not exactly how your belief goes,then its BASICALLY that)
im wondering;how do you come up w/ the theory that they started spinning after being shot out all over the place if things that are shot out,dont go spinning around?
examples are;you pop a balloon but the pieces dont spin around after being shot out-& i doubt they would start if they didnt land anywhere.OR,your throw a ball but it doesnt start spinning anywhere-i know it also lands as well as the balloon pieces.but how 'bout this?may be an even better example;you knock a puck across the ice,but when it gets to its destination, it doesnt start spinning, it just slows, then stops.
could ya tell me how ya got the spinning idea?
2007-09-02
16:33:54
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24 answers
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asked by
Tiff
3
in
Science & Mathematics
➔ Astronomy & Space
o dont get me wrong, im not evolutionist iether, im just tryin to make sense of one of their theories. personally i find their theories interesting, even tho they dont usually make sense to me. (im creationist as well)
2007-09-02
16:46:26 ·
update #1
"geomatic", 1st of all, u didnt answer my q. @ all.
2nd, i didnt realize there was a diff. between evolutionists & scientists/astronomers etc. i thot evolutionists WERE those. why else would they insist on science?
2007-09-02
16:51:16 ·
update #2
"cbirch", no, He didnt do it 2 entertain Himself, He did it 4 the sake of us being able 2 survive.so that the sun will reach all sides of the earth, give us seasons, etc. The only thing He created 4 His own enjoyment is making us. He made us cuz He was lonely. everything else He did, He either did 4 the sake of our lives, or 2 give us something beautiful 2 look @ & explore.
2007-09-03
12:26:27 ·
update #3
"geomatic", im NOT here 2 stir stuff up. im simply trying 2 understand 1 of the theories. u may think what u like but if thats your attitude, then u wont believe the truth. thats your prob. @ least not evey1 here has the same stubborness as u.
2007-09-05
05:44:11 ·
update #4
The Big Bang theory was devised by a Christian priest. It was the best way he found to explain what all astronomers were seeing.
The ony thing that "shoot out" from the Big Bang is energy. As the temperature of the universe dropped, some of that energy "froze" into quarks, which then combined to form protons and neutrons.
About 300,000 years after the big bang, the temperature droppend enough for the electrons and the protons to join, to form atoms. That is when the universe became mostly transparent (before than, photons kept bumping into free electrons that are always very eager to absorb the photons' energy -- light could not go for long distances).
At that point, the temperature was still high enough (thousands of degrees) that atoms were bouncing off each other with lots of speed and energy, having their velocities randomised.
The light that we perceive today from this event is known as the Cosmological Microwave Background. Light that has been travelling so long has its wavelenght made longer by the expansion: it is now in the microwave band (much longer wavelength than visible light).
As things cooled down, some of the atoms began to get closer together, at first by chance. Once enough matter got together, gravity took over to gather even more matter.
More and more matter formed clouds that collapsed upon themselves. SInce everything was moving, there could be a tiny preference for movement in one direction than another. By chance.
One area of space might have had a tiny dominance of movement in one direction; other regions in another direction.
So some clouds as they collapsed, would start rotating in one direction, while others would rotate in another direction.
Most astronomers believe that, overall, these rotations cancel each other out and as a whole, the universe is not rotating (even if it were, we have nothing to measure the rotation against).
When a cloud collapses to form a star and, perhaps, a solar system, then either the cloud starts spinning one way or the other (from whatever random movements existed among the grains of dust within the cloud) or it does not. In the latter case, the star will not have a spin and, likely, will not have planets (any matter outside the star would fall into the star, not having enough sideways movement to stay in an orbit).
The cloud that formed our solar system must have been spinning in the same way as our sun spins, which is the same way that the planets orbit the sun and which is the way most planets spin on themselves. All that spinning comes from the original spin of the cloud.
Why was the cloud spinning? just the sum of all the random movements of the atoms that had been dragged in by gravity to form the cloud in the first place.
It does not "start spinning" at some precise time. The random movement is always there. As the cloud collapses, the random movements add up and the rotational inertia gets "concentrated" in a smaller radius, increasing the speed of rotation.
In fact, with gazillions of grains moving at random, it would be very difficult to explain a lack of rotation. You would need to have exactly half of the random movements go one way and exactly the other half going the other way. That is very improbable.
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We will have to wait for the collapse to create a sun, then planets, then life, before we see evolution.
2007-09-02 17:34:39
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answer #1
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answered by Raymond 7
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Hi. It is nice to see your curiosity and natural scientific mind. If you continue to develop you ability to observe and add the training in science, you can be a good scientist.
The 'Big Bang' is the currently accepted theory of how the Universe began. It is just a theory. Theories are useful to try to learn about what is real and what is either not real, or can not be proven real (but may be real.)
'Evolution' is also a theory and is not the same theory as 'The Big Bang,' so, some people might believe in one or the other or both or neither. :-)
To answer your spin question, you can prove how it happens by yourself. Get two magnets that will slide easily on a smooth flat surface such as a Formica table or a glass top table. Slide one toward the other just hard enough so that they will stick together but not stop moving. Try to hit the one on the side, not right in the middle.
After they stick together, you will see that they now spin around together. The is a demonstration of 'conservation of angular momentum.'
One magnet has no angular momentum. The other does. When they join together, the angular momentum averages out into either a slightly different direction of the new pair, or a spinning motion or a combination of these.
Another simple experiment is to walk past your friend and as you pass, you hold hands. You will see that your motion is now changed to a circle around your friend.
In the universe, the attraction is neither magnetic
not hand holding. It is gravity. But gravity still causes things to come together. When they come exactly together they just become a ball of something. but if they are passing by each other and still come together, then they start spinning. The momentum that was going forward, now joins to cause spin.
;-D Thanks for the nice question. It let me stretch my imagination, which is something I enjoy. I hope you do too.
2007-09-02 17:01:44
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answer #2
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answered by China Jon 6
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Okay, for one thing, the Big Bang and astrophysics are NOT covered by the theory of evolution. This is a common creationist mistake. Evolution as a theory describes how life on Earth changed over time; it doesn't touch the origin of the Universe or anything that happened between the Big Bang and the first living cell, a period of some 10 billion years.
Secondly, the Universe hasn't "settled" into any position. It is still expanding. There are tons of evidence to support this.
Rotation happens when things collapse, as when a star collapses from an enormous cloud of dust, or when a planet collapses from the disk of gas and dust surrounding the star. Because everything was moving at different speeds (based on orbital mechanics, another very well-established branch of science), the matter naturally started rotating as it shrank into planets. As it shrank further and further, it spun faster and faster (look up "conservation of angular momentum" to get an idea of how that works).
So you see, planet rotation is not such a mystery after all. But it's still not evolution. Well, it is planetary evolution, I suppose, but that's not what you meant, was it?
2007-09-02 16:50:40
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answer #3
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answered by Lucas C 7
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1) 'Evolutionist' is not a word. The word you're looking for is 'scientist', 'astronomer', or 'astrophysicist'. Evolutionary biology does not equal astrophysics.
2) No, not at all. Please read up on the actual theory of the big bang. It happened 13.7 billion years ago. The Earth is only 4.5 billion years old. It wasn't here from the beginning.
3) It didn't. The matter that emerged eventually as a result of the big bang had no net angular momentum - it was not spinning. I don't know where you heard that, but it's wrong.
4) The big bang was not an explosion. It was an expansion.
5) YOU got the spinning idea somewhere.
2007-09-02 17:51:28
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answer #4
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answered by eri 7
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First of all, "believing" in the big bang doesn't negate God. Second of all "believing" in biological evolution doesnt' negate God. Those who say that the big bang and evolution do negate the existence of God are idiots with monetary intentions.
Now, as for the balloon example, the pieces of the balloon expelled when it is burst certain do rotate. The "spinning" idea is just an expression of the consevation of momentum and those systems that spun held together while those that didn't spin collapsed.
Please remember the Bible was written in times where scientific knowledge was non-existent, and the writers provided information based on conjecture as modified by God's inspiration. Diluvial theory is based in part on the finding of sea shells many hundreds of feet above current sea level, which we now know as being caused by the uprising of land due to tectonic forces. First century and earlier peoples knew nothing of such tectonic forces and made the assumption that the sea level was once several hundreds of feet higher than now, so only a worldwide sea could get the shells there.
Also, remember, that the "creationists" make money by expounding (and publishing) their ideas, and scientists make money by critically examining the evidence. Many scientists are Christians (as am I), and I certainly trust them to do science more than I trust preachers to do science.
2007-09-02 18:49:40
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answer #5
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answered by David A 5
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Evolutionists aren't necessarily the ones who devised the Big Bang. How about astronomers and physicists? Evolutionists deal with the evolution of life beginning about 3.8 bya. The Solar System is about 4.55 byo. Be careful with your blanket terms.
Your examples deal with things that are infinitesimal compared to the solar system. There can be no wholly accurate comparison between a hockey puck and the creation of the solar system.
I believe in the Big Bang because evidence supports it and I believe in an all powerful creator God who allowed me to develop the reason and intellect to see what makes sense and what doesn't. Like looking at the world around me for answers, not a book written by men.
I didn't answer your question because you won't believe it anyhow. You're just here to stir up stuff.
People "insist" on science because it is real and tangible and makes sense. Not all scientists are evolutionists. What about chemists? Mathematicians? Physicists? Evolutionists come from many fields, not just science. And just because someone is a scientist, doesn't make them an evolutionist.
2007-09-02 16:45:59
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answer #6
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answered by Lady Geologist 7
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You do realize that your question incompasses the entire field of Cosmology and can't be explained in a few paragraphs. If you don't understand the concepts, this is hardly the place to start. If you are really interested, take a course at the local community college.
To answer you question about why everything is spinning, it is due to the conservation of momentum. Everything was moving in a straight line at the beginning. When it cooled eoungh for gravity to take over, the linear momentum is converted into angular momentum. If you want to test this out, run in a straight line, jump, then grab a light pole or something that is firmly planted on the ground. You linear momentum of going forward is converted into angular momentum as you start to rotate around the pole.
2007-09-02 18:39:16
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answer #7
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answered by zi_xin 5
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You have a few things confused. Things didn't just start spinning just like that.
Random motion of the energy and matter that expanded after the Big Bang would have caused some areas of slightly-denser matter and areas of slightly-less-dense matter. Since everything was moving in one direction or another, random motion would have made some of the material interact gravitationally to cause the particles to "swing" around each other and remain together. The motion they had when they started to 'orbit' each other would have remained, it would have been changed into orbital motion instead of straight-line motion.
So small clumps of this stuff moving around itself would attract other matter to it by gravitation, imparting all the motion of the matter joining the clump into the spin of the clump.
Given enough time (billions of years) and matter, you get rotating clouds of gas that condense into the first supermassive stars (still rotating).
When they explode as supernova, the shock waves travel out in all directions, and they interact with clouds of gas and cause the clouds to move and condense (rotation is the lowest level of motion energy that a system of particles can have, like a sphere is the lowest energy shape for a large object to have).
So when clouds move due to random motion or shock waves from supernova or shock waves from moving through denser areas, the easiest motion for it to take on is rotation.
The law of the conservation of momentum states that the total momentum of a system can't be lost, it can only change.
2007-09-02 16:49:37
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answer #8
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answered by Anonymous
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You've got the BASICALLY wrong.
After the BB the gases were flung away. Gravitation slowly drew the gas molecules together and because the molecules already had a linear velocity every time a new molecule was pulled in, it added is kinetic energy to the mass and the sum of all the different vectors is a spin. The results of the BB have not settled down, as you put it, they have just clumped into bigger bits that are reacting in nuclear fusion, (thats what a sun is), but they are all still traveling.
2007-09-02 16:48:58
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answer #9
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answered by Anonymous
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I'm gonna skip all the stuff about you getting your terms mized up and just correct the error in your statement:
The Big Bang was the expansion of all matter. Planets didn't come out of the Big Bang, just a lot of matter that was distributed into what is now the universe. After a very long time (probably millions to billions of our years), this matter started to group up into large clusters which grouped up into even larger clusters with enough mass to them to trigger the reactions needed to become suns. Suns have a lot of gravity and are able to pull in smaller bits of space debris which eventually collects at points in orbit around them and forms planets.
Now, the spinning thing, I think you've been misinformed. They didn't start spinning because of the big bang, they just spin because of their movement and the movement of other bodies in space. They may also have gained differing spin directions due to impact between themselves and other bodies in space.
I hope this helps you understand.
2007-09-03 05:46:02
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answer #10
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answered by Anonymous
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