A_A

A_A , 9 months ago to nostupidquestions in When does the future begin?

Anthropologically speaking this is the best answer. Our brain needs a certain span of time to establish perceived reality.

A_A , 9 months ago to nostupidquestions in When does the future begin?

No physical mechanisms predefines future events (or is there one ?).

So, I could state that the future does not exist yet and the past as ceased to exist.

in that statement I have a problem with the definition of existence. Does the definition of existence exist itself ? This is (is it ?) more a problem of terminology than philosophy or physics.

A_A , 9 months ago to sysadmin in Have you guys heard of ipfs? It seems to be a distributed way of serving content. I don't think its anywhere close to prod ready in its current state but it could be one day.

i made this post (one month ago) :
How to browse ipfs:// ?
Bottom line : it went nowhere.

A_A , 10 months ago to world in China map: India lodges 'strong protest' over territory claims

Humanity is so stupid when it comes to “territory” and we are not the only species that acts like beasts about it.

A_A , 10 months ago (edited 10 months ago) to askscience in what is the mass of a cloud?

At sea level air is about 1.25 kg/m³, so for one cubic kilometer cloud that is :
1 250 000 tons.

I put your result into table to show a problem at 51 km and above… since density decreases monotically with altitude.

mass (tons)	altitude (km)
1 250 000	0
364 000	11
88 000	20
860	51
64	71

https://lemmy.ca/pictrs/image/1d0d1e74-5b89-406f-a062-3f01dd2fa89c.webp

A_A , 10 months ago (edited 10 months ago) to askscience in Gravity field scaling?

I did make I have made many mistakes, much worse than this one and on many occasions. I would say : don’t be so hard on yourself since it’s important to forgive ourselves.

I do believe the following correction should be made again to your text though :

Gravity is an [edit: inverse squared] function, so it gets weaker at an exponential a squared rate as you move away from the source.

A_A , 10 months ago to askscience in Gravity field scaling?

Hey @Jeredin

This one, @FlowVoid, has the correct answer…

So, don’t believe in the crackpot idea that it would be exponential

A_A OP , 10 months ago to askscience in New physical cosmological model : is it coherent ?

I need some rest now. I will try to be back some other time.

A_A OP , 10 months ago to askscience in New physical cosmological model : is it coherent ?

Maybe this is what would falsify my proposal… unless maybe that fluke local radiation could start at the maximum energy of the black body curve ? I will try to look into this.

A_A OP , 10 months ago (edited 10 months ago) to askscience in New physical cosmological model : is it coherent ?

What is the source of these gravitational waves?

in my post there is a link for a powerful source of these waves but any source is good enough.

How would rogue gravitational waves create matter?

Here I use an analogy with the waves in the ocean that were discovered to create very strong unexpected phenomenas. When a field is strong enough it can create matter. So, it would be something similar to Hawking radiation or creation of electron positron pairs from gamma rays.

What do you mean by “net zero energy”?

I was most impressed by a single fact of physics that all energy in ordinary matter is equal to the negative potential gravitational energy of that matter.

How would this [creation of matter and gravitational fields] increase the expansion of the universe?

I read somewhere, maybe quantum gravity theories, where one creates the other, so I would have to search it again, unless someone here can help me.

(…) black body CMB?

Please notice that inside another comment in this post I have addressed that question.

A_A OP , 10 months ago (edited 10 months ago) to askscience in New physical cosmological model : is it coherent ?

Whoops, I was updating my comment while you were responding to it. My edit answered your question ?
Also : “3d interference pattern of gravitational waves would create rogue waves.” But, what I mean by “if self coherent” is simply the question : is my model self-coherent.

A_A OP , 10 months ago to askscience in New physical cosmological model : is it coherent ?

@count_of_monte_carlo

I might be missing something, but how would this new model reproduce the CMB? The cosmic microwave background is a black body spectrum with an extremely uniform temperature in all directions. The localized fluctuations in temperature are only a very small shift to the average.

By the integration over an exponentially expanding universe of the fluke electromagnetic radiation created locally. Maybe matter is created as neutrons that decays into hydrogen atoms which would then radiate something.

A_A OP , 10 months ago (edited 10 months ago) to askscience in New physical cosmological model : is it coherent ?

@FelipeFelop

Agreed, this is the most on topic post we’ve had for a while.

We both think my post was on topic, unfortunately, ShowerThoughts moderators deleted it !

Generally, conservation of energy applies in a closed system, so [it] wouldn’t apply at the creation of the system.

Plus we can’t (yet) be sure what caused the Big Bang if it happened.

Nice 😊 !

I’ve always liked the idea that matter, space and time are the way we observe the interactions of fields. So gravity waves make an interesting idea as to how part of it might work

Now we need a physicist and a mathematician, which obviously, I am not.

A_A OP , 10 months ago to askscience in New physical cosmological model : is it coherent ?

@PinkOwls

You might be interested in Dirac large numbers hypothesis, where the mass of the universe depends on the age of the universe. That kind of [ideas] would be a hint for matter being continually created.

Thanks, I will read into it.

A_A OP , 10 months ago to askscience in New physical cosmological model : is it coherent ?

@Aurenkin

Oh nice, thanks for the link. Not usually the kind of thing I expect in a shower thoughts community

Since the post was erased I don’t know what link it was… maybe it’s the one about the Penrose process ?
(energy extraction from a rotating black hole)