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Big Bang

Name: Anonymous 2007-05-21 19:00 ID:LmnW8hZq

Ask me anything about and I'm sure that I can answer it.

Name: Anonymous 2007-05-21 19:01 ID:LmnW8hZq

Pretend there's an "it" in there.

Name: Anonymous 2007-05-21 19:35 ID:bNnqxn24

What made it happen?

Name: Anonymous 2007-05-21 19:44 ID:Fjn2Bg6D

What was before?

Name: Anonymous 2007-05-21 20:08 ID:LmnW8hZq

>>4
>>3
The big bang theory doesn't answer those questions.  The big bang theory only makes conclusions based on observations.

A sub-theory of the Big Bang which is wildly accepted known as the Inflationary Model of the big bang says universes can be made from either a universe going through inflation, or through the creation of a singularity.  Without going into depth, it has to do with pieces of high energy patches of space "falling off."

There are no real assumptions made by the big bang theory (BBT from now on) about initially what started it.  The idea in the previous paragraph gives an idea that a universe initially expands and overcomes the gravitational effects of its high densities through the energy that caused the patch of space to fall off in the first place.

Name: Anonymous 2007-05-21 22:33 ID:Fjn2Bg6D

What happens when the bang loses its momentum?

Name: Anonymous 2007-05-21 22:58 ID:LmnW8hZq

>>6
If it doesn't have enough momentum when it first starts out, it collapses on itself.  The original energy that the big bang has is in the form of gravitation with a positive value.  If that positive value cancels out the negative value (The kind of gravity we are used to) for a period of time that allows inflation to finish, then you have a universe.

Name: Anonymous 2007-05-22 0:02 ID:iryZEm8y

does gilgamesh created the big bang?

Name: Anonymous 2007-05-22 0:47 ID:qa6mCZKl

Where was Lisa, when big bang happened?

Name: Anonymous 2007-05-22 1:05 ID:Hj8lvEdv

Why isn't it called the big screw?

Name: Anonymous 2007-05-22 5:01 ID:9gHkhgCj

How can I further my knowledge of human anatomy without going to college so that I may be a more prolific serial killer?

Name: Anonymous 2007-05-22 14:36 ID:/rYTw2lK

Where was Bart when the big bang happened?

Name: Anonymous 2007-05-22 22:30 ID:iK0+Uo+O

HOW BIG WAS IT?

Name: Anonymous 2007-05-22 22:46 ID:Y2XY/YYG

>>13
Big. The universe is predicted to be 1.37^40 billion light years in diameter because of it.

Name: Anonymous 2007-05-23 9:30 ID:ETrcCYKt

What does the center of the universe look like?

Name: xpof 2007-05-23 10:28 ID:UiOOQWn9

What type of particles were there at the time of the big bang

Name: 4tran 2007-05-25 18:21 ID:6GGpeer6

>>16
Singularity.

Name: Anonymous 2007-05-25 21:53 ID:SNswzm1L

>>17
lies

Name: Anonymous 2007-05-26 12:54 ID:IEAYHkk9

>>1

If there really WAS a big bang, wouldn't the momenta of collisions forming planets mostly cancel out? So why do planets spin?

That pretty well mops the floor with big bang theory; I'm not trying to establish that God created the universe, but there definitely was intelligence behind it.

Name: Anonymous 2007-05-26 14:33 ID:3vIUnKWV

>>19
?

Name: Anonymous 2007-05-26 17:19 ID:81kXTpke

hoe does the ekpyrotic model fit into your plans?

Name: Anonymous 2007-05-26 18:03 ID:Heaven

>>19
"The momentum seems like it would cancel out, but I'm not going to provide any proof. Therefore, the universe was created by Go-- sorry, the universe was intelligently designed."

If only ID people were capable of intelligently designing arguments, the conversations might be a bit more interesting.

Name: Anonymous 2007-05-27 7:24 ID:HuPzzt1r

>>19
Some don't.

Asteroids.

Name: Anonymous 2007-05-27 8:10 ID:stEz9LOf

>>19
Gilgamesh

Name: Anonymous 2007-05-27 9:07 ID:2CPRe9jo

>>19

THAT mops the floor with big bang theory? You really are stupid.

Firstly even if your argument made any kind of sense it doesn't show intellegent design, just that the theory doesn't fit.

Secondly your argument is crap.

Angular momentum must be conserved. Stars and planets form from very large gas clouds, about 100 light years across (which will form several stars). The chances of the angular momentum of all the particles in this cloud cancelling out is on the order of 0. As this cloud collapses the rotation speeds up due to conservation of angular momentum, this cloud has to collapse from a radius of about 2 light years to that of light minutes (for the solar system), the momentum perpendicular to the axis of rotation will cancel and so a disc is formed (which has a reasonable spin at this point) around the central star. As planetessimals form in this disc they will have a distribution of momenta that is non uniform but will still have roughly the same direction which is why the planets in our solar system rotate mostly in the same direction.

LEARN SOME BASIC PHYSICS BEFORE MAKING STUPID ARGUMENTS OR SPOUTING OTHER PEOPLE'S.

Name: Anonymous 2007-05-28 18:11 ID:3h0q4T2J

Oh, right... I forgot about this thread.  I'll answer some things later. 

>>25
Thank you.

Name: Anonymous 2007-05-28 18:19 ID:jruUK9Co

>>26
do it now please i want to learn more!

Name: Anonymous 2007-05-28 18:41 ID:8tqQ6H0l

Questions for those who believe the "Big Bang Theory":

- If planets were formed by many small collisions, the impacts would be largely self-cancelling, and the planets would not spin.

- If the solar system formed from a swirling cloud of stellar matter, all planets would orbit the sun in the same direction.

- Gas dissipates rapidly in a vacuum, rendering the formation of gaseous planets like Jupiter and Saturn impossible. (This fact alone renders the theory for the formation of the planets completely invalid)

- If the big bang theory was true, all the planets in the solar system would have largely similar chemical composition. However, there is enormous diversity among planets.

- The big bang cannot explain the formation of 'rings', such as those of Saturn.

- Scientists agree the universe had a beginning, called 'singularity.' The means that there was nothing in the beginning, suggesting that first there was nothing ... then it exploded.

- If solar system formed as the big bang theory suggests, all planets would also rotate in the same direction. Pluto and Venus rotate backwards. Uranus is tipped on its side, and rotates like a wheel.

- The big bang theory indicates that all the planets' moons should orbit in the same sense, but there are at least 6 moons with backwards orbits. Also, Neptune, Saturn, and Jupiter have moons orbiting in both directions.

- The big bang theory fails miserably at explaining why the Earth and it's moon have such a dissimilar composition.



That pretty well mops the floor with the Big Bang theory. Most of the above points are not only unexplained, but *contradicted* by the big bang theory, which could adequately be dubbed "A Fairy Tale for Physicists."

Name: Anonymous 2007-05-28 21:53 ID:pjts53ko

>>28

Oh god another idiot.

Firstly if you don't know words like "net", "distribution", "average" etc then go away.

Secondly you're confusing "big bang theory" with theory of stellar and planetary evolution (which for the hard of thinking is nothing to do with the theory of evolution relating to living beings).

Thirdly you show a complete lack of any understanding of any physics.

--If planets were formed by many small collisions, the impacts would be largely self-cancelling, and the planets would not spin

Planets aren't formed by many small collisions, they are formed by many small collisions, gradual accretion, several large to massive collisions etc. This also takes place in a gravitationally chaotic setting, there's forces pulling all over the place, highly unstable orbits, things being pulled and pushed around. Conservation of momentum means that the total momentum will result in a net rotation of a certain direction but the components don't have to be equal and a reverse orbiting planet is not impossible.

-- Gas dissipates rapidly in a vacuum, rendering the formation of gaseous planets like Jupiter and Saturn impossible. (This fact alone renders the theory for the formation of the planets completely invalid)

*headdesk* Gas dissipates because of the motion of the particles, with any reasonable distribution of velocities (uniform, boltzmann, gaussian etc) a gas will expand outwards. Think of being inside a sphere (your cloud of gas) there are more directions heading further from the centre of the sphere than towards it, thus the particles will disperse. When you have a large amount of mass gravity becomes important, skewing the above distributions by applying a force inwards and resulting in the gas coming together. And by your argument the Earth would have no atmosphere and we'd all DIE (the edge of the atmosphere is in contact with a vacuum, would dissipate, the next layer is in contact etc).

--If the big bang theory was true, all the planets in the solar system would have largely similar chemical composition. However, there is enormous diversity among planets.

Initially dust grains would start to form from the heavier elements, these would build up on each other forming asteroids and rocky planetessimals. When these get big enough the more gaseous elements will start to collect aswell (and being a gas with weak inter atomic bonds it takes a greater gravity to hold a large amount in place) resulting in different elemental makeups between certain classes of planets. Then pressure and temperature will affect chemical reactions and states of matter resulting in differing chemical makeups.

-- The big bang cannot explain the formation of 'rings', such as those of Saturn.

Which creationist's arse did you pull that one out of? The rings are gas and small rocks that have the right momentum to remain in orbit without flying off or accreting in.

-- Scientists agree the universe had a beginning, called 'singularity.' The means that there was nothing in the beginning, suggesting that first there was nothing ... then it exploded.

Called "a singularity", a singularity is such named simply for being a point source, they are also found in black holes. A singularity doesn't mean nothing, it means something in an infintessimal space. It also didn't "explode" as such, space itself expanded, that singularity WAS THE UNIVERSE, it wasn't a load of nothing and that. Also science accepts that theories have limits and that current physics breaks down at t=0, but accepting these limits and then trying to work past them is how we learn. There are current theories that offer solutions to things like this (though they are at the very early stages of development and aren't even close to being taken as close to true, merely a possibility) but if you're having problems with planetary evolution there really is no hope for you getting even the most basic fundamentals of M-theory.

-- If solar system formed as the big bang theory suggests, all planets would also rotate in the same direction. Pluto and Venus rotate backwards. Uranus is tipped on its side, and rotates like a wheel.

As I said above, planetary formation was a highly chaotic period, a large planetoid (maybe the size of an Earth or two) hitting Uranus would easily give it a hefty knock. Venus is just one planet and one planet being spun the other way (erratic orbiting planetessimals going nearby pulling on it, impacts coming in the other direction etc) is not a problem, net angular momentum still works out fine. And Pluto doesn't even deserve to come into this, it's a tiny rock and on the energy scales we're talking about the requirement to spin it the other way is low.

-- The big bang theory indicates that all the planets' moons should orbit in the same sense, but there are at least 6 moons with backwards orbits. Also, Neptune, Saturn, and Jupiter have moons orbiting in both directions.

Again with the above arguments about why some things can spin the other way.

-- The big bang theory fails miserably at explaining why the Earth and it's moon have such a dissimilar composition.

Not sure on the current theories on our moon, possibilities though include being formed from Earth at a time when the distribution of chemicals was different to today or that the moon is a passing planetessimal that got caught by the Earth.

--That pretty well mops the floor with the Big Bang theory. Most of the above points are not only unexplained, but *contradicted* by the big bang theory, which could adequately be dubbed "A Fairy Tale for Physicists."

The fact that you're even calling this "Big Bang Theory" and have only one point that's even about the Big Bang itself proves just how retarded you are.

Name: Anonymous 2007-05-28 23:38 ID:SANKQFVD

>>1
I found god, I don't need your evil liberal science shit.

Name: Anonymous 2007-05-28 23:40 ID:jruUK9Co

>>28
hahahaha powned by >>29

Name: Anonymous 2007-05-28 23:41 ID:jruUK9Co

>>30
I found Odin, I don't need your evil liberal science shit.

Name: Anonymous 2007-05-28 23:47 ID:8tqQ6H0l

>>1

I found Gilgamesh, he was in the glove compartment.

Name: Anonymous 2007-05-29 0:33 ID:zp94y4yo

I'm too lazy and stupid to understand what you're saying, so I'll just believe god did it. the bible is certainly more understandable than evil liberal science shit, so I'll swallow it whole. kinda like how I built that wooden chair by myself. you need someone to build something right? your evil liberal science shit is full of uncertainities and loopholes, mine is simple and flawless: god did it.

Name: Anonymous 2007-05-29 1:04 ID:7gIP1PF+

I'm too lazy and stupid to understand what you're saying, so I'll just believe ""GILGAMESH"" did it. the
""Epic of Gilgamesh"" is certainly more understandable than evil liberal science shit, so I'll swallow it whole. kinda like how I built that wooden chair by myself. you need someone to build something right? your evil liberal science shit is full of uncertainities and loopholes, mine is simple and flawless: ""GILGAMESH"" did it.
fixed

Name: Anonymous 2007-05-29 1:06 ID:7gIP1PF+

Gilgamesh was rumored to be the first immortal
Gilgamesh replaces Odin

Name: Anonymous 2007-05-29 1:09 ID:7gIP1PF+

Gilgamesh's historical reign is believed to lie within the period 2700 BC to 2500 BC, 200-400 years before the earliest known written stories. The discovery of artifacts associated with Agga and Enmebaragesi of Kish, two other kings named in the stories, has lent credibility to the historical existence of Gilgamesh (Dalley 1989: 40-41).[1]

Name: Anonymous 2007-05-29 1:11 ID:7gIP1PF+

Gilgamesh flood myth
[edit] Tablet eleven (XI), the flood tablet
The Gilgamesh flood tablet XI contains additional story material besides the flood. The flood story was included because in the story the flood hero Utnapishtim is granted immortality by the gods and that fits the immortality theme of the Gilgamesh Epic. In Tablet XI Gilgamesh meets Utnapishtim, who tells him about the great flood and reluctantly gives him a chance for immortality. He tells Gilgamesh that if he can stay awake for six days and seven nights he will become immortal. However, Gilgamesh falls asleep and Utnapishtim tells his wife to bake a loaf of bread for every day he is asleep so that Gilgamesh cannot deny his failure. When Gilgamesh wakes up, Utnapishtim decides to tell him about a plant that will rejuvenate him. Utnapishtim tells Gilgamesh that if he can obtain the plant from the bottom of the sea and eat it he will be rejuvenated, be a younger man again. Gilgamesh obtains the plant, but doesn't eat it immediately because he wants to share it with other elders of Uruk. He places the plant on the shore of a lake while he bathes and it is stolen by a snake. Gilgamesh, having failed both chances, returns to Uruk, where the sight of its massive walls provokes him to praise this enduring work of mortal men. Gilgamesh realizes that the way mortals can achieve immortality is through lasting works of civilization and culture.
ilgamesh XI is usually translated (with reference to the boat) "ten rods the height of her sides."[5] or "its walls were each 10 times 12 cubits in height".[6] A rod was a dozen cubits and a Sumerian cubit was about 20 inches. Hence these translations imply the boat was about 200 feet high which would be impractical with the primitive technology in Gilgamesh's time (about 2700 BC). One problem with these translations is nowhere in line 57 is there an Akkadian word for "height". The sentence literally reads "Ten dozen-cubits each I-raised its-walls."[7] A similar example from an unrelated house building tablet reads: "he shall build the wall [of the house] and raise it four ninda and two cubits." This measurement (about 83 feet) obviously means wall length not height.[8]

Name: Anonymous 2007-05-29 7:09 ID:8CAnzVSl

>>34

--I'm too lazy and stupid to understand what you're saying, so I'll just believe god did it.

You misspelled "brainwashed".

Name: Anonymous 2007-05-29 15:18 ID:i3953GYa

--I'm too lazy and stupid to understand what you're saying, so I'll just believe ""insert favorite deity" did it.

Name: Anonymous 2007-05-30 13:27 ID:0RCoxoeh

bump

Name: Anonymous 2007-05-30 15:18 ID:Heaven

sage goes in the email field

Name: Anonymous 2007-05-30 17:04 ID:RwC44DwX

big bang rebump

Name: Anonymous 2007-05-30 17:57 ID:xAwV7yLP

--I'm too lazy and stupid to understand what you're saying, so I'll just believe god had sex.

Name: Anonymous 2007-05-31 6:07 ID:RGsz1K4V

what date did it occur?

Name: Anonymous 2007-05-31 13:11 ID:LEuAZE2M

t=0

Name: Anonymous 2007-05-31 13:55 ID:QT8P0HvQ

>>45
around 17,000,000,000 years ago

Name: Anonymous 2007-05-31 22:58 ID:BpaK1HCa

>>47
Hehe... heh.. nice trolling.

Name: Anonymous 2007-06-01 3:16 ID:cTT8x6PU

>>29

1.  At the point of singularity, when talking about the big bang, is all the matter in the universe at a literal point, and thus the sphere it forms is infinitesimal in volume, or does it all simply form a spherically-symmetric body that therefore counts as a "point mass"

2.  What was the "stuff" that the very first point of singularity made out of?

3.  At the point of singularity right before the very first big bang (unless you believe that it is somehow in an infinite loop) all the matter had gathered in one area.  How is this possible without the matter reacting (ie, creating stars, or at higher mass, big banging) BEFORE it reached a point of singularity?  Did it just "spawn" at the point of singularity?

4.  I always here BB theorist talk about use "space" and "the universe" interchangeably.  As I understand it, "the universe" is defined by the matter it contains, and more commonly by astral bodies, and "space" is actually the "stuff" in between matter, ie vacuum.  If my understanding of the terminology is correct, then wouldn't "space" be infinite, or at least much, much larger than "the universe"?  If the universe is expanding, then logically space is what the universe is expanding into.  To use the common example, if one were to think of an expanding balloon as the universe, the surface of the balloon being the outer most matter, then the air, both inside and out of the balloon would be "space".  Is this correct?

Name: Anonymous 2007-06-01 13:50 ID:ZTqvW7S3

OP here again.

>>49
You've got it all wrong.  A singularity is not "just a point in space." A singularity is a point in space whose density, mass and size all go beyond the planck scale.  That means that it's impossible to calculate (with our current model of physics) what a singularity actually is.  Of course, you can make observations and mathematical conclusions that use physics similar to the singularities (Things like the event horizon), but it's impossible to determine what's actually "in" the singularity.

Before the discovery of hawking radiation (x-ray radiation coming from a black hole), it was thought that all information that goes into a big bang is lost.  When hawking "discovered" hawking radiation, it was determined that black holes do not lose all of their information.  From what I understand, the contents of the singularity are all just in a state of ambiguity.

And on 4... please kill yourself.
The balloon model is almost like a 2D representation of the universe, but one that curves on itself.  A good way to explain it would be to say that our 3d universe is flat when looked at from a 4th spatial dimension.  It's almost the exact same way. 

The inside of the balloon is irrelevant in every way.

And no, space is not infinite, it simply looks infinite because it "curves" back onto itself.  That's generally what the common understanding is.

Name: Anonymous 2007-06-01 14:00 ID:AOiQkB31

>>50
Don't you mean, anything that goes into a "black hole", not a "big bang" is thought to be lost?

Name: Anonymous 2007-06-01 14:06 ID:ZTqvW7S3

>>51
Yeah, I should really proof read before hitting reply.

Name: Anonymous 2007-06-01 15:20 ID:vyrelAh+

i noes teh thereez!!!11!1!1eleventeen!

I CAME

LAWL WUT

Name: Anonymous 2007-06-01 19:46 ID:qe8rNluV

>>50
I thought Hawking radiation involved the spontaneous appearance of a wave and "anti-"wave of some kind near the event horizon, resulting in one or the other being sucked into the bh, the other escaping. Gravitational energy goes to wave and kinetic energy. How does that involve losing or gaining information? Although, to be fair, I'm not entirely sure what's meant by "information" in a physics sense.

Name: Anonymous 2007-06-02 1:12 ID:tmeie7Gz

>>50
Hilarious failure. All information IS lost in a black hole.

In a perfect vacuum, virtual leptons and anti-leptons are constantly being created in pairs and destroyed within the time allotted by the uncertainty principle; when this happens near the event horizon of a black hole, one of the particles gets sucked in and can't re-annihilate the other, so the other particle becomes real and carries away energy from the black hole. It does not carry out information; only energy. This is how a black hole evaporates, and these escaping particles are called hawking radiation. The escaping particle *does not* carry information away; in other words you're completely wrong.

>>49
It doesn't really make sense to think of the big bang as having all the matter concentrated at a single point; rather, space itself consisted of a single point, and all the matter in the universe was *everywhere*. That's why there isn't a point in the universe where we can point to and say "that's where the big bang happened"; rather, the big bang happened everywhere.

This is why the matter didn't react, or form stars or anything like that; there wasn't any space for this to happen, because the universe consisted of a single point.

As for why space suddenly expanded, we don't know yet. There is serious work being done in cosmology right now that hopes to figure that out.

Name: Anonymous 2007-06-02 1:30 ID:pJfrNqOy

Name: Anonymous 2007-06-02 15:07 ID:nwseKOK1

Large Hadron Collider

Name: Anonymous 2007-06-02 18:22 ID:Fzj09QUZ

A Christian asked me why matter isn't evenly distributed throughout the universe, while saying that the fact that it isn't “totally defies science”. Please tell me why matter isn't evenly distributed so that I can be better than him.

Name: Anonymous 2007-06-02 19:44 ID:EyNoAGMZ

fuck I don't know, he's got us beat

Name: Anonymous 2007-06-03 5:54 ID:G6A3j0Hd

hi maths forum

Name: Anonymous 2007-06-03 8:33 ID:w8+RQJ8R

Divide by zero. Oh shi-

Name: Anonymous 2007-06-03 11:59 ID:roqNyWXw

>>58
Gravity pulls matter to other matter.

Also, in an early universe, when everything was easily effected (or is it affected..) by quantum effects, there were areas of larger gravity density.  The areas of larger gravity density lead to the clumping of areas with more average density of matter than others.  Add that with my first comment, and you get a possible answer for why the universe is in the same shape that it is.

Name: Anonymous 2007-06-03 12:00 ID:roqNyWXw

>>62
And by shape, I mean "how the galaxies are separated."

Name: Anonymous 2007-06-03 13:32 ID:2T4O0VvC

What's M-Theory?

Name: Anonymous 2007-06-03 16:41 ID:PjVAaaBE

>>64
It is the name of a theory, it was originally going to be called L-Theory, but someone else took that name so they bumped it up a letter.

Name: Anonymous 2007-06-04 17:13 ID:DUEJ3RlS

--I'm too lazy and stupid to understand what you're saying, so I'll just go fap to /s/

Name: 4tran 2007-06-04 20:06 ID:+99YmP3R

>>50
You're assuming a closed universe, which we're not certain of yet.  Current data suggests a flat universe.

Name: Anonymous 2009-03-18 2:55

Don't call me gay, but I need some mary jay!

Marijuana MUST be legalized.

Name: Anonymous 2011-02-02 0:56

hi

Name: Anonymous 2011-02-03 10:11

How awesome is Sheldon?

Name: Anonymous 2011-02-03 10:13

How awesome is Sheldon?

Name: Anonymous 2011-02-04 12:28

>>70
>>71
he's a gigantic faggot

Name: Anonymous 2011-02-09 15:44

>Ask me anything about and I'm sure that I can answer it.<
Why does your grammar suck?

Name: Anonymous 2011-02-16 5:21

Why is the answer to life the universe and everything 42?

Don't change these.
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