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Because deuterium is destroyed in the interiors of stars faster than it is produced, and because other natural processes are thought to produce only an insignificant amount of deuterium, it is presently thought that nearly all deuterium found in nature was produced in the Big Bang 13.7 billion years ago
A few minutes into the expansion, when the temperature was about a billion (one thousand million; 109; SI prefix giga-) kelvin and the density was about that of air, neutrons combined with protons to form the Universe's deuterium and helium nuclei in a process called Big Bang nucleosynthesis.[46] Most protons remained uncombined as hydrogen nuclei. As the Universe cooled, the rest mass energy density of matter came to gravitationally dominate that of the photon radiation.
The small excess of quarks over antiquarks led to a small excess of baryons over antibaryons. The temperature was now no longer high enough to create new proton–antiproton pairs (similarly for neutrons–antineutrons), so a mass annihilation immediately followed, leaving just one in 1010 of the original protons and neutrons, and none of their antiparticles. A similar process happened at about 1 second for electrons and positrons. After these annihilations, the remaining protons, neutrons and electrons were no longer moving relativistically and the energy density of the Universe was dominated by photons (with a minor contribution from neutrinos).
The most common isotope of hydrogen is protium (name rarely used, symbol 1H) with a single proton and no neutrons
Originally posted by Warpedconsciousness
reply to post by jiggerj
To understand how much hydrogen is out there you should know that our sun creates 430–600 million tons of hydrogen each second.
Originally posted by rickymouse
reply to post by Phage
I doubt if the Big Bang theory is even close to real so comparing things to it time-wise doesn't make sense.
Who makes up these weird theories that become real when enough people believe in them? I see this kind of comparison stuff going on all the time and everywhere. Does it really matter? No, it's just conversation anyway. Now I'm starting to think out-loud in text
Originally posted by Astyanax
reply to post by jiggerj
The amount of matter in the universe today is the same as it was at the moment the Big Bang occurred.
Originally posted by smithjustinb
The question is, "What is matter?"
Particles with different charges that can organize themselves in various ways to give you various elements. The particles are all the same thing, just with different charges. Zooming in further, string theory believes that particles are made of vibrating one dimensional lines called, "strings".
But that still doesn't answer the question, "What is matter?" So what is it? Energy? The ability to do work? There seems to be more to it than the simple definition of "the ability to do work".
Honestly this is a rhetorical question, because the truth is, we really don't know what matter is.
Originally posted by smithjustinb
Originally posted by smithjustinb
The question is, "What is matter?"
Particles with different charges that can organize themselves in various ways to give you various elements. The particles are all the same thing, just with different charges. Zooming in further, string theory believes that particles are made of vibrating one dimensional lines called, "strings".
But that still doesn't answer the question, "What is matter?" So what is it? Energy? The ability to do work? There seems to be more to it than the simple definition of "the ability to do work".
Honestly this is a rhetorical question, because the truth is, we really don't know what matter is.
But I'll give you a hint. An organic seed the size of a pee contains the information to go on to make a much larger tree. Matter is a seed. The purpose of the universe is to create life. Life comes from seeds. Matter is life.
I'm thinking that the space needed to contain the lighter elements that made all the galaxies we see has to be huge, Huge HUGE! Beyond our imagination. Yes? No?
According to [the hypothesis of] inflation, the universe expanded by a factor of at least 10^78 (that's 10 with 78 zeroes after it), all in less than a second. This stage could have formed the basis for the large-scale structure we can detect in the distribution of galaxies around us now. Source
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If the universe is SO big that we can't even fully comprehend or imagine its size, then if we reverse the direction of the galaxies we can see, how do we know that all this matter doesn't come together in the form of a black hole that blew up 13.5 billion years ago? How do we know that we aren't in just a small quadrant of the universe that was made by a black hole in another quadrant, which was made by another black hole in another quandrant.
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The processes of the maple tree turns Magnesium into Chromium.
Originally posted by Astyanax
The universe would look the same to us whether or not it was embedded within another universe,