Jump to content

Any empty vacuum space light can not travel in the Universe?


Recommended Posts

Are there any empty vacuum space through which light can not travel in the Universe? Do we have any information about it? Are there any Dark Matter which has such property?

 

Light has no problem traveling through a total vacuum.

Link to comment
Share on other sites

How to make a total vacuum?

Do we make a vacuum space which has no Casimir effect?

 

I don't think that's what Airbrush was implying. There's more than one definition of vacuum, and "complete absence of anything" is only one of them and isn't physically attainable. Since we're talking about real effects, I assume that real vacuums — the absence of real, massive particles — are what are being referred to. Light would have no problem traveling through such a vacuum.

Link to comment
Share on other sites

Let us think about Black Hole. Near Black Hole, Is it an empty space light can not travel?

----------Black Hole center ----------surface -------------------------------------------------------------------------------------------------------->radial direction

----------very high mass region(Black Hole) ------light can not travel region ---------light bending region ------------light no effect region

Link to comment
Share on other sites

Let us think about Black Hole. Near Black Hole, Is it an empty space light can not travel?

----------Black Hole center ----------surface -------------------------------------------------------------------------------------------------------->radial direction

----------very high mass region(Black Hole) ------light can not travel region ---------light bending region ------------light no effect region

 

Could the only total vacuum in the universe exist inside a black hole, the region between the event horizon and the singularity?

Link to comment
Share on other sites

Think about light bending and gravity.

Intensity of Gravity...0------low--------------------------------------------------------------------------------------------------------------------------------------------------------------------------->high

Related phenomena..-----no affected ------small bended ---highly bended----critical bending --What happen?(light speed increase? critical bending? other phenomena?)---->

Edited by alpha2cen
Link to comment
Share on other sites

Do not use this kind of sentence.

That's meaningless. ==> That is no meaning., I do not understand the meaning.

Try using words instead of lines and arrows. ==> How about using a detail sentence instead of using figure?

Link to comment
Share on other sites

First of all, there is no such thing as an empty space. I don't even think an empty space exists inside a black hole...

 

What do you think will happen to atoms, or any kind of particles, inside a black hole? They instantly fall to the singularity and get shrunk to a point. I do believe that inside a black hole is totally void of matter, except the massive singularity. How could it be otherwise?

Link to comment
Share on other sites

"They instantly fall to the singularity and get shrunk to a point."

No. They do not.

With a big enough black hole you could settle down and raise a family within the event horizon without knowing you were there.

Did it not occur to you that to fall instantly they would need to travel at infinite speed which implies breaking the light barrier?

Link to comment
Share on other sites

You are correct for supermassive black holes that are feeding, but for any-sized mass black holes, which are not feeding, inside the event horzon is totally void of matter, except the singularity.

Edited by Airbrush
Link to comment
Share on other sites

You are correct for supermassive black holes that are feeding, but for any-sized mass black holes, which are not feeding, inside the event horzon is totally void of matter, except the singularity.

 

 

Do you have any kind of citation for this claim. Because, given that we don't know what the singularity acutally is, and we don't know the physics inside the event horizon, to make the claim that there is no matter inside the event horizon is a bit premature.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.