How Universe might end

[Michael 345]

This is from my thunks about ENERGY

ENERGY is a MEASUREMENT and a PROPERTY of stuff and systems

The various types of energy can generally be exchanged between each other but not at a 100% efficiency. That (100% efficiency pathway) leads to perpetual motion stuff big no no
The not present energy from / in energy conversion is present in the PROCESS itself an normally manifest as HEAT

It is behind the speculation of The Heat Death of the Universe
In The Heat Death of the Universe speculation every atom will be isolated from all other remaining atoms leading to no more Universe, no more stuff to MEASURE the POTENTIAL energy between two bits of stuff
So what happened to the POTENTIAL energy?

Hint the clue is in the word POTENTIAL. It never existed

Now if this never existed energy was converted into another form of energy that energy could be converted back to POTENTIAL energy, starting the cycle again

Are you thinking it sounds like the Universe IS a perpetual machine

Not so. Remember The Heat Death of the Universe speculation? If this turns out to be correct and all atoms are flying apart from each other we have atoms at some ambient temperature and space temperature (heat radiation from the atoms)

From this onwards is my speculation

Space ambient temperature and atom temperature will continue to decrease until both are close to (but never at) ZERO

Now we get to my weirdest idea

Once space temperature gets to within a Planck's temperature (is there such a thing?) SPACE WILL VANISH

The sheer nothingness will halt all remaining atoms which will begin to "fall"? into said nothingness

This continues as gradually atoms pick up speed (POTENTIAL energy), start to clump together

The process continues until the amount of stuff and energy collected is so dense and hot — ........
If you have followed the bouncing ball this far can you see where I am headed?

...…— I am not going to call it a singularity (singularity implies something to small). I will go with my terminology - small ball PROTO Universe

At some unknown critical point the number of atoms and resultant heat brings on Rapid Expansion (better description) of PROTO Universe

Ladies and Gentlemen may I present to you our latest Universe

 

[Ssssssss]

Planck's temperature (is there such a thing?)

Yes it's about \(1.4\times 10^{32}\mathrm{K}\).

The universe has been below that temperature for a few years now and it's still here.

 

[Q-reeus]

The recent passing of John D Barrow was a sad loss. His professional evaluation of what are and mostly aren't viable cosmological model categories (assuming only a closed, finite, not infinite universe):
https://arxiv.org/abs/1912.12926

 

[Michael 345]

Yes it's about \(1.4\times 10^{32}\mathrm{K}\).

The universe has been below that temperature for a few years now and it's still here.

Thanks

I was thinking more t lowest temperature ie zero


In the Planck temperature scale, 0 is absolute zero, 1 is the Planck temperature, and every other temperature is a decimal of it. This maximum temperature is believed to be 1.416833(85) x 1032 Kelvin degrees, and at temperatures above it, the laws of physics just cease to exist.Jan 9, 2020

https://www.zmescience.com › ...
The minimum and maximum possible temperatures

https://www-zmescience-com.cdn.ampproject.org/v/s/www.zmescience.com/science/minimum-and-maximum-temperatures-043294/amp/?amp_js_v=a6&amp_gsa=1&usqp=mq331AQHKAFQArABIA==#aoh=16232468335118&referrer=https://www.google.com&amp_tf=From %1$s&ampshare=https://www.zmescience.com/science/minimum-and-maximum-temperatures-043294/


.....highest possible temperature is the Planck temperature, which has the value 1.416785(71)×1032 kelvin,....

https://en.m.wikipedia.org/wiki/Absolute_hot

But thanks to you I did some checking to find Planck temperature is the hottest

I have updated my notes but cannot update post

Will sort out more later

Thanks

Edit PS currently space is sitting at 2.73 Kelvin

 

[Michael 345]

Once space temperature gets to within a Planck's temperature (is there such a thing?) SPACE WILL VANISH

This part of my post should read

Once space temperature gets extremely close to zero SPACE WILL VANISH

Due to my thinking Planck temperature would be the COLDEST

Currently space is sitting at 2.73 Kelvin. The more it expands the colder it will become. The more stuff moves apart, less opportunity for stuff to bump together exchanging its POTENTIAL ENERGY (speed / motion) into heat

Heat death of the Universe means NO heat

??? Would such a situation wipe out Quantum Foam leaving a TOTAL EMPTY VOID? No Quantum Foam? No fields?

 

[James R]

This is from my thunks about ENERGY

ENERGY is a MEASUREMENT and a PROPERTY of stuff and systems

Okay.

The various types of energy can generally be exchanged between each other but not at a 100% efficiency. That (100% efficiency pathway) leads to perpetual motion stuff big no no
The not present energy from / in energy conversion is present in the PROCESS itself an normally manifest as HEAT

Heat is a type of energy. Specifically, heat is a transfer of energy between two objects or systems due to a temperature difference between them.

In The Heat Death of the Universe speculation every atom will be isolated from all other remaining atoms leading to no more Universe, no more stuff to MEASURE the POTENTIAL energy between two bits of stuff
So what happened to the POTENTIAL energy?

Hint the clue is in the word POTENTIAL. It never existed

Like every type of energy, potential energy is a conceptual, calculated quantity. That doesn't mean it doesn't exist, any more than kinetic energy doesn't exist. The concept of potential energy follows from the definition of a conservative force. The thing that is conserved by a conservative force is total mechanical energy. A familiar example is the gravitational force.

It's silly to claim that gravitational potential energy doesn't exist. If you want to claim that, then where does the kinetic energy come from when you drop an object?

Oh, and by the way, every time you lift an object up you increase its gravitational potential energy. So, there's no problem with converting other forms of energy to potential energy.

Not so. Remember The Heat Death of the Universe speculation?

The heat death follows from the laws of thermodynamics, as long as the universe expands forever. There's not a lot of room left for speculation.

Space ambient temperature and atom temperature will continue to decrease until both are close to (but never at) ZERO

Space doesn't have a temperature. Perhaps you're thinking of the microwave background radiation, but that's a radiation bath, not empty space.

What happens when hot things are in contact with cold things is that they reach a thermal equilibrium after a while. You know that from experience. The universe as a whole isn't that different from your cooling cup of coffee.

Once space temperature gets to within a Planck's temperature (is there such a thing?) SPACE WILL VANISH

The sheer nothingness will halt all remaining atoms which will begin to "fall"? into said nothingness

How can something fall into nothingness? What's nothingness?

This continues as gradually atoms pick up speed (POTENTIAL energy), start to clump together

Speed is related to kinetic energy, not potential energy. Clumping together typically lowers potential energy.

The process continues until the amount of stuff and energy collected is so dense and hot — ........
If you have followed the bouncing ball this far can you see where I am headed?

...…— I am not going to call it a singularity (singularity implies something to small). I will go with my terminology - small ball PROTO Universe

At some unknown critical point the number of atoms and resultant heat brings on Rapid Expansion (better description) of PROTO Universe

Ladies and Gentlemen may I present to you our latest Universe

Congratulations. You've rediscovered the notion of a cyclic universe that goes through successive cycles of expansion and contraction. The only problem is that it's not looking like our universe is going to pull itself back together, ever. There's not enough matter in the universe for it to do that. Worse still, dark energy seems to be pushing everything apart.

 

[Michael 345]

Heat is a type of energy. Specifically, heat is a transfer of energy between two objects or systems due to a temperature difference between them.

I understand HEAT is a form of energy. My point was HEAT is, generally, the energy OF the INTERACTION of the two objects AND which forms the INTERACTION

How can something fall into nothingness? What's nothingness?

Space is said to contain numerous fields, so although lacking physical material it still contains said fields

My idea of NOTHINGNESS is because of the expansion of the Universe individual atoms will spread so far apart not even fields will exist over the region. A combination of the speed of the expanding atoms and smallness of field they carry with them makes it impossible for said fields to exist in the space they are leaving

It is this NOTHINGNESS the atoms will fall into

cyclic universe

Yes I understand cyclic universe. This is my attempt to go back before the Big Bang (I prefer Rapid Expansion but will stay with convention) as in

HOW DID THE SMALL (ATOM ?SIZED?) HOT DENSE STATE FORM

The only problem is that it's not looking like our universe is going to pull itself back together, ever.

Agree

The expanding atoms forming a SPACE BEHIND THEM VOID OF FIELDS / QUANTUM FOAM however would not rely on the matter in the Universe PULLING itself back together but the mechanism would be the atoms FALLING into the TOTAL VACUUM VOID it being of the lower potential than the cloud of atoms balled around it

 

[kx000]

Space is beginning less and endless distance, time, and living things. As long as science claims energy can’t be created or destroyed it would me rational to believe that eternity is a very real thing.