How was the universe created? Trigger of the big bang

[TRIOMATIC]

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For every gun there is a trigger.
This thread is for competing scientific theories that triggered the big bang.

According to the theory of relativity. Energy can be converted to mass and vice versa. It is widely believed that the universe originated as a singularity of pure energy which expanded and became all matter and spacetime.

My question is how did such a singularity came to be? What could be a catalyst for such a massive amount of energy to collect into a single point and somehow become unstable and explode/expand?

These are competing theories that I find most convincing

-An old recycled universe which gravitationally collapsed to form a singularity

I really like this old theory, which means that before us, countless universes exsisted that were destroyed and were recycled into new universes through gravitational collapse. Widely disproved by scientists as it is calculated there is not enough gravity for such a collapse. Even if this were the true theory, there are still questions left unanswered, like "what process created the cyclical universe?".

-Collision of parallel dimensions which in theory creates massive amounts of energy at the junctures
I find the concept of parallel dimensions too outlandish at first, but somehow I think this is a very convincing catalyst for generating the energy needed to create all the mass we see today.

Post theories you like, and if possible tell us more about them. Debate is welcome. Kani, sugdan na nato ang ka labad sa ulo

[emailroy2002]

can you imagine in the beginning there was none even a single atom?

i can't!

[rodsky]

can you imagine in the beginning there was none even a single atom?

i can't!

Just because you can't imagine it doesn't mean it's untrue.

-RODION

[fritzd]

This was one of my favorite topics during my early days in physics. hehe

-An old recycled universe which gravitationally collapsed to form a singularity

I really like this old theory, which means that before us, countless universes exsisted that were destroyed and were recycled into new universes through gravitational collapse. Widely disproved by scientists as it is calculated there is not enough gravity for such a collapse. Even if this were the true theory, there are still questions left unanswered, like "what process created the cyclical universe?".

If I'm not mistaken this is the so called "Big Crunch" theory of how the universe will end and begin again. Unfortunately, experimental data suggests that the universe is expanding more and more rapidly which means that there probably won't be a Big Crunch. I was also a fan of this theory long ago. hehe



I'd like to share something not exactly related to the birth or and end of the universe but more on the properties of the universe before, now and later. It's quite interesting. It turns out that some fundamental constants vary throughout space and time.

Changes spotted in fundamental constant - physicsworld.com

The field is called variation of fundamental constants in the universe. It's a mix of astrophysics, quantum optics, and atomic and molecular spectroscopy. Astrophysics and quantum optics specialists are comparing data obtained from cosmos and high resolution laser spectroscopy of Hydrogen. One of the front runners of laser spectroscopy to probe variation of fundamental constants in Theodor Hansch who is a Nobel prize winner. THis is link to his research group. Laser Spectroscopy Division

It's a very fascinating field. Imagine fundamental constants varying at different parts of the universe and different times. This will change our understanding of how the universe behaved in the beginning up to now.

[TRIOMATIC]

This was one of my favorite topics during my early days in physics. hehe



If I'm not mistaken this is the so called "Big Crunch" theory of how the universe will end and begin again. Unfortunately, experimental data suggests that the universe is expanding more and more rapidly which means that there probably won't be a Big Crunch. I was also a fan of this theory long ago. hehe



I'd like to share something not exactly related to the birth or and end of the universe but more on the properties of the universe before, now and later. It's quite interesting. It turns out that some fundamental constants vary throughout space and time.

Changes spotted in fundamental constant - physicsworld.com

The field is called variation of fundamental constants in the universe. It's a mix of astrophysics, quantum optics, and atomic and molecular spectroscopy. Astrophysics and quantum optics specialists are comparing data obtained from cosmos and high resolution laser spectroscopy of Hydrogen. One of the front runners of laser spectroscopy to probe variation of fundamental constants in Theodor Hansch who is a Nobel prize winner. THis is link to his research group. Laser Spectroscopy Division

It's a very fascinating field. Imagine fundamental constants varying at different parts of the universe and different times. This will change our understanding of how the universe behaved in the beginning up to now.

I never thought of that before. Nindot sd nah bay, kay if scientists can determine the changes in the universe and its dark matter properties and the properties of spacetime as it ages. The more we can calculate it in reverse to give us a picture of the characteristics of the very early universe, or the singularity where it came from.
Since quarks and quasars form at the fringes of the known universe, and the light from them is billions of years old. I would imagine the properties of spacetime and the density of dark energy might be different. Whether that plays a significant role in the universe is yet to be known, as dark matter isnt fully understood yet.
Speculation ra ni, pero I also imagine na if these changes continue to happen. New laws of physics might come in to play in the distant future that dont exist now. Ofcourse that is very far in the future.
kuyaw bay hehehe

[cromagnon]

^ not to mention parallel universes //

a bubble in an ocean of bubbles

[Darkk]

sorry sa post nq.

[BetterPhilippines2015]

Ingon sila naa daw ta sulod sa jolen sa usa ka powerful being. Mao diay ng ug atong tanawon ang jolen mura ug universe. So posible kaha nga kini atong jolen ron naay nagpuyo?

[Bangkilan]

choya sa universe

never heard of that term in physics is that a theory?

please tell me ANY substantial facts that make sense

logically about "CHOYA". *thanks*

[Lee Ho Khan]

For every gun there is a trigger.
This thread is for competing scientific theories that triggered the big bang.

According to the theory of relativity. Energy can be converted to mass and vice versa. It is widely believed that the universe originated as a singularity of pure energy which expanded and became all matter and spacetime.

My question is how did such a singularity came to be? What could be a catalyst for such a massive amount of energy to collect into a single point and somehow become unstable and explode/expand?

These are competing theories that I find most convincing

-An old recycled universe which gravitationally collapsed to form a singularity

Actually I thought of this idea when I was drunk last week and my roommate was playing Mass Effect 3 with animation of the Universe spiralling. Haha!

As of now, the universe is expanding. I was thinking that maybe after the big bang explosion (assuming its true), that the universe would naturally expand (ofcourse, explosion, duh). But after ma-expend na tanan energy used for expanding, moreverse ang expansion to de-expansion(whatever the term is) and be pulled back to due to gravity of the galaxies. Galaxies would probably attract each other and collide (join/mix).

And once that happens, this big mass will collect more and more mass (I'd like to imagine a huge ball of solid mass). More mass means more gravity and will continue to attract other objects until it becomes so heavy the core will burst due to the intense amount of pressure inside the core.

This takes around billions or trillions of years.. maybe more.

Not a fact, but still interesting theory nonetheless.