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If light has no mass, how is it affected by black holes? The answer is: massive objects bend the "fabric" of space-time, so light travels along a different path than it would have if the massive object were not there. [🎞️physicsgene]

332,791 次观看 • 1 年前 •via X (Twitter)

11 条评论

Stevarino1020 的头像
Stevarino10201 年前

All this is presumption.

FRANK E ELKINS 的头像
FRANK E ELKINS2 年前

“Science doesn’t tell us why the Big Bang happened, how the singularity occurred in the first place, or why it exploded when it did. It tells us there is objective scientific evidence that it occurred. So, what exactly was the Big Bang?” – Book III The Enigmatic Mystery

Why Not! 的头像
Why Not!1 年前

or it's not possible to bend space or time and we are missing what really causes Gravity.

Sean Collins 的头像
Sean Collins1 年前

That’s not an answer, it’s a hypothesis.

Paul_Gradenwitz 的头像
Paul_Gradenwitz1 年前

Nonsense. Only if you define that the speed of light is a constant, then the only way to explain the longer travel time if light near a mass, as observed with the Shapiro delay, is by assuming that spacetime is curved. But when you define that spacetime is flat, then you explain the same observation with a change of the refractive index of space as a function of the mass distribution. The higher this refractive index goes above 1, the slower light propagates. Stop thinking that space changes its geometry. The content of space changes always. We, our particle function, slow down near gravitating masses. Light propagation slows down. At the EH of the BH, all light comes to a halt, and all particles condense to a particle condensate that covers what condensed there before.

Mixie Media 的头像
Mixie Media1 年前

This is based on assumptions

Miles Stephens 的头像
Miles Stephens1 年前

Yes, that is the the effect. However, what exactly is the "fabric" of space and time that is being bent?

ViharikaQuest 的头像
ViharikaQuest1 年前

I actually finally understood what a black hole is, in some way

Proof-of-Sandwich 的头像
Proof-of-Sandwich1 年前

So wait, then light isn't sucked in? It just travels around b/c of the space-time bending?

Curious Fuel 的头像
Curious Fuel1 年前

Fun fact: Black holes have such strong gravity that not even light can escape them! 🌑💡 This is why they appear "black"—no light can be emitted or reflected from inside the event horizon, the point of no return. It’s one of the most fascinating mysteries of the universe!

Anthea17 的头像
Anthea171 年前

@lavanaz That would be a good explanation for the halos we see. It's not what is inside refelcring off the dome- it's light from outside hitting the surface and projecting a ring....interesting...

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