/sci/ - Science & Math

I wonder if if we could use a series of black holes to see beyond the observable universe through a relay or repeater methodology.

>>15385875
Kek, can't you do a fucking google search?

>>11161302
What about other cases of gravitational lensing happening without a photosphere?

And where are the predictions made by this varying densities model you presented? How do they compare to reality? Are they better than results made by gravitational lensing models?

>relativity is wrong

okay, then explain this.

Does light curve around small objects too, even if by an immeasurably tiny amount?

why dont we build mirror telescopes with 1km diameter?

>>10304414
It exists. It shouldn't. It is absolutely, 100% illogical that such a thing as a universe should exist. And yet it does.

>>9911495
>>gravitational lensing
>Sci-fi.
Real, we have multiple observed examples of it. Mass curves space-time, light travels through curved space and is bent, it arrives at the observer as a lensed image. Gonna call that dogmatic too?

>>9763156

Do you have credible sources on your LIGO claims? How do you propose we explain observations that GR easily explains such as gravitational lensing or the orbital precession of Mercury?

It is indisputable that GR is incomplete, mostly in the quantum regime. But its predictions on the macroscopic scale are undeniable. What exactly are you out to prove on this?

Apparently, this is one galaxy bending the light of another, more distant galaxy into a circle.

How does a relationalist about spacetime explain black holes, gravity waves and lensing?

>>9194584
How do you explain gravitational lens?

Redpill me on gravitational lensing /sci/.

Here's your proof, if you can't accept it, then it is your problem.

>>7690786
>gravity of the earth disc might bend the light.

It takes objects far more massive than the Earth to cause any appreciable gravitational lensing.

But because the entire flat earth-disk model consists of made-up physics anyway, I guess anything goes.

>>7456952
>we are considered to be generally close to the center of the universe because red shift all over the place

There is no centre of the universe (cosmological principle), what's happened here is that you've gotten confused, we are at the centre of a sphere that we can view, this our light horizon, if we shifted from earth to Mars then Mars will be at the centre of it's own light horizon.

>at the incredible distance that light travels to get to us, would the act of passing so many objects distort the wave length?

Okay, the wavelength of light is affected by gravity, it's called gravitational red shift. That said the effect is pretty small. Beyond that you have gravitational lensing , which doesn't affect the wavelength but does produce a noticeable pattern, pic related, that circle in the centre should be a galaxy but it's passed through a region of high gravity which has caused it to be distorted into the circle you see.

>>7205130
Sorry about that. You're absolutely correct. The "ghost images" are of the background source (the quasar), not the intervening mass.

Sometimes you do see a "luminous ring." Pic related is an example. The exact appearance of the lensed object depends on the geometry of the lensing mass. A simple (sufficiently heavy) spherical mass directly in front of the background source would produce a perfect ring. A more complicated distribution produces a more complicated image. Often, the intervening mass isn't heavy enough to cause multiple images to appear, so there is only "weak lensing" resulting in the shape of the background object being subtly bent and its position being slightly offset.

>>6994775
Einstein ring, grav lensing.
Just demonstrates the sorts of the things gravity can do.

How the fuck is this image real? Seeing this just makes me want to throw up.

Scary space pictures general.

>>6717835
Evidence points to the direction that gravity is the curvature of space-time.

What I think is not explained by General Relativity is why mass curves space-time, it explains how mass curves it and how curved space-time makes mass move.