Something from Nothing

[Graybeard]

Fantastic pics .... especially the blueprint one. But I would divide the bottom timeline up as below.



more to come

cool bananas ... greg

[labelwench]

A little imagery goes a long way sometimes, ________________________________________ I have further discussion on your post, but have some honeydo's to attend to first. A man's work is never done...lol.
Originally posted by analog

Gentleman, thou doth protest too much.

By your intelligent postings, I would surmise that you are one of the minority of males whose brain functions allow him to contemplate two subjects at the same time.

Therefore, your mind may formulate your next reply while you are attending the "honey-do's."

Now a really clever "B" would be attending the "Honey", because I have it on good authority that if you keep the female distracted in such manner, she will likely go shopping or gardening or visiting her girlfriends to brag about your conduct, the matter of tasks to keep you occupied, futhermost from her mind.....

As usual, there is no charge for this timeless piece of observation. Fair trade for the scientific education you are providing.

Regards,

Labelwitch

[labelwench]

Long had she waited for this moment....

Temptation, so tantalizing,

Soon, not just yet......

She admired it's colour,

it's size,

it's firmness.......

and then....

she parted her lips,

and took it wholly into her mouth.......

enjoying,

with every fiber of her being,

the first radish of spring!

[analog]

Was gonna post here and divulge all of the secrets to the universe, but got three quarters of the way through labelwench's erotic narrative of vegetable eating and completely forgot what I was gonna say....................even if man were to hold all of the knowledge in the universe whereby perhaps having seeming control over his destiny, he would probably still be at the mercy of the simplest of natures mechanisms i.e. hormones.

[Unreal Zelta]

By your intelligent postings, I would surmise that you are one of the minority of males whose brain functions allow him to contemplate two subjects at the same time.

I always thought upgrading my brain to a dual-core or quadcore would do the trick. Additional memory and harddrive is optional, but a new graphics card and sound card would maximise my appreciation of this world. Surely.

regards

Zelta

[greenbug]

Yeah but who wants to play this game? The graphics are lousy and there is no replay value.

[Graybeard]

So now the total gravitational force within a region depends on the total mass within that region, total energy within that region as well as the total pressure within that region. Energy adds to the total gravitational field. Pressure adds to the total gravitational field via its energy, as well as via its presence.

Just to re-iterate here:

Pressure gravitates.
Pressure can have a negative value.
Positive Pressure makes a Positive contribution to Gravity.
Negative Pressure makes a Negative contribution to Gravity.

Now just for a moment going back to the compressed spring: This is outward directed pressure and is called Positive Pressure. Positive Pressure makes a Positive contribution to Gravity.

Einstein introduced the Cosmological Constant when he realised that the equations could not 'maintain' a static universe, which he and everyone else wanted. So the A's initial purpose was a balance to oppose 'attractive' gravity and stabilise the universe. (Which no one knew was expanding, or even had expanded.)

Bearing that in mind, Einstein's equations make sense whether the cosmological constant A is positive or negative. He realised this and in order to achieve his ends he gave it a positive value. A negative value yields ordinary attractive gravity. But a Positive value yields a uniform Negative Pressure

It is also a constant uniform pressure and does not directly exert a force which pressure differences do.




The Cosmological Constant, Dark Energy, the Inflaton Field, Repulsive Gravity are all terms for something we don't really know about.

However, the Inflaton field comes with an explanation for how it works, as well as solving many other problems. There are hundreds of theories that reside under the 'Inflation' Umbrella. I'm not going to 'detail' them any further here ... But some of them are so simple, and solve so many problems you just can't help feeling that they have to be right ... lol.

Basically its possible for a negative pressure to arise, in fact the odds are favourable. It does not have to arise everywhere at once. It does not require special conditions

Linde's latest equations show that that the negative field could have emerged from a size smaller than 10^-33 centimetres across (planck length ?) and would only needed to 'weigh' as much as a grain of dust (10^-5 grams ?).

From this grain of dust the equations can build a whole universe, with all the matter and space we currently observe. But to keep this in perspective the 'grain of dust' would have had to have a energy density above 10^94 grams.

To add to this simplicity it needs no special 'designer' energy bowl to release its energy. It can operate from a standard energy bowl ie: the mexican hat version is not required.

The problem with this is that 'negative gravity' is counter intuitive. If you picture it as a pressure pushing outwards against gravity you have the wrong concept. And if you have the wrong concept it will forever be difficult to understand inflation.

If you want the concept explained I can have a go, because I have one that works for me. Not sure if it would work for anyone else. By the way Tim, I only found my concept, which I had been looking for for ages, after you explained your FS ... lol. I got it from your description !

cool bananas ... greg

[Max™]

What phenomenon would have had time to develop and become a dominating factor in the Universe in the time between the big bang, and the onset of "Dark Energy"?

Black Holes, as they're produced by stars/galaxies, and require the general distribution of matter to be at a certain stage to become truly prolific.

Why does that matter?

If you model a Universe as simply as you can, you will note a certain... springiness, and a willingness to fold back up into a compact state.

As you add lumps, the springiness becomes disturbed, but there is still the ability to fold back up smoothly.

What type of phenomenon would prevent one from folding something up in a smooth manner?


Ever folded a sheet up that was full of holes?

Ever tried to stretch one over a mattress when it had holes in it?

[thinking]

What phenomenon would have had time to develop and become a dominating factor in the Universe in the time between the big bang, and the onset of "Dark Energy"?

Black Holes, as they're produced by stars/galaxies, and require the general distribution of matter to be at a certain stage to become truly prolific.

Why does that matter?

If you model a Universe as simply as you can, you will note a certain... springiness, and a willingness to fold back up into a compact state.

As you add lumps, the springiness becomes disturbed, but there is still the ability to fold back up smoothly.

What type of phenomenon would prevent one from folding something up in a smooth manner?


Ever folded a sheet up that was full of holes?

Ever tried to stretch one over a mattress when it had holes in it?

and this has anything to do with something from nothing ?

even in your " pressure " example you include gravity and gravity is based on mass , not nothing

[Max™]

My post has to do with this picture graybeard posted:



Somewhere between the left side and the right side, something changed which caused the Universe to begin unfurling at an accelerated rate again.

Gravity is not based on Mass, Gravity is based on Spacetime seeking a smooth state.


In order to answer the question of "what was the nothing state like?", I suggest that it may be useful to run cosmic evolution forwards to a logical conclusion, and see if you observe any answers there.

If entropy always increases, what is a state where no further increase in entropy is possible?

It would be utterly disorded, no sense of directionality, no sense of causality, no way to distinguish anything from anything else.

It would be nothing, you could say.