How long is the big bang process?
Let me tell you a story.
Once upon a time there was an egg called Robert, and he was a cosmic egg filled with energy. But something strange happened inside the egg, probably because the energy inside the egg was out of balance, and Anyway, Robert cracked open with a bang!
At this time, there was nothing around Robert's cracked egg, so there were no atoms and no electrons, nothing. Of course, there are no forces like gravity, electromagnetic force, strong nuclear force, weak nuclear force. Because ah! Without matter, there can't be any gravitational pull, right?
However, as energy gushes out of the eggshell, the energy finds more and more space, and there is no limit to the expansion of energy, it naturally expands.
After the energy spread out from Robert, three children were born, each called:
Quarks (upper quarks and lower quarks, they come out of the womb together!) ）
Electronic Sister
Neutrino younger brother
When the three babies cried out for the first time, at the other end, three more children were born from the anti-Robert:
Antiquark
Positron sister
Anti-neutrino younger brother
Along with these children, other eggs like Robert gave birth to top quarks and bottom quarks, among others.
So these kids are everywhere. When the children began to go to school together, they met each other, and it is not difficult to imagine that school fights will inevitably occur between Robert's children and anti-Robert's children. They will destroy each other and generate more energy from it. Some children don't fight and walk away, while others destroy themselves in a fight, generating more energy and children. After that, Robert and the other neighborhood kids slowly grew into adulthood, and they found out
The Internet, where polygamy was learned. And so it happened.
1 lower quark + 2 upper quarks = proton
2 lower quarks + 1 upper quark = neutron
That's right, that's how protons and neutrons come about. Space then expands and cools. The next generation moves on, and now it's time for protons and neutrons. Protons and neighborhood kids neutrons start dating, and they eventually become inseparable. Thus their combination formed the initial hydrogen. Similarly, having two protons and two neutrons determines that all four of them live together, which forms helium.
At some point, the universe will be filled with 75% of the hydrogen family and 25% of the helium family. At this time, hydrogen has its own community, which is called "hydrogen cloud". Hydrogen clouds move over time in space, they get closer and closer, and the gravitational pull in them begins to mix them together, spinning along a center like we break an apple with a blender. Because of this enormous pressure and temperature, hydrogen clouds begin to form other substances in the periodic table of your chemistry book.
(Photo: A community of hydrogen, hydrogen clouds)
Helium communities, on the other hand, do the same, forming stars like our sun.
That's right, that's it, that's what happened in the millions of years after the Big Bang.
If you've seen the American sitcom "The Big Bang Theory," you've definitely heard the song:
Our universe used to be hot and dense,
It began to swell about 14 billion years ago. Wait a minute...
The earth began to cool,
The autotrophic creatures began to drool,
Neanderthals invented tools,
We built walls (we built pyramids),
Mathematics, science, history, unraveling mysteries,
They all started with the Big Bang!
Nothing exploded.
Explosion refers to the propagation of supersonic shock waves through a medium, accompanied by the release of a large amount of energy to maintain the propagation of the shock wave.
Even if the Big Bang did happen, it wouldn't have exploded because there were no shock waves. From where we see it at this point, the Big Bang happened simultaneously in every place.
The Big Bang was instead a phased process of matter change in the universe, from an early state that was difficult to describe in our physics, to some kind of particle soup that was extremely plasmon-like, to a true opaque plasma, and finally to the transparent plasma we see today. In the process of change from opaque to transparent, the only part of the change that we can see directly is the cosmic microwave background radiation.
Some of these early states appeared to have different spaces and times, different from what we are observing around us now, which leads to the idea of the expansion of the universe, and what is certain is that since the plasma became transparent, the space around all matter has increased (most likely for some time before becoming transparent, otherwise the cosmic microwave background radiation would have looked very different).
So it's more like the universe was driven by expansion, cooling down from a very hot state to a relatively cold state it is now. The universe, as it cooled down at some early stage, injected many, many moments into matter, and the universe has been expanding ever since. Or it may be that when space was created, the universe took the many, many dynamics of matter as the initial condition. Even if we have a very limited understanding of the initial change, it is difficult to describe it, but it is this change that makes space and time what it is now.
BY: Nikhil Patel, Andrew McGregor
FY: redbeard305050
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