Thread: Does gravity travel? how fast?

That makes me wonder if gravitons(if they exist) can be deflected or warped the same way photons can. similar to how gravitational lensing works. Or if gravity(gravitons) act more like dark matter they kinda ignore most forces in the universe. Sort of having "no-clipping" on in a videogame.

Dark matter [if it exists] is massive. Gravitons are hypothetical gravitational field quanta, and as such, are massless. More to the point, gravitons [if they exist] are responsible for the warping of spacetime. It is only logical that they interact with themselves and follow the same geodesics in spacetime that photons follow.

Originally Posted by MisterMe

Dark matter [if it exists] is massive. Gravitons are hypothetical gravitational field quanta, and as such, are massless. More to the point, gravitons [if they exist] are responsible for the warping of spacetime. It is only logical that they interact with themselves and follow the same geodesics in spacetime that photons follow.

Gravity is a myth.... The Universe sucks !!!!! LoL... Gravity is a unseen but felt and measured dimensional law that shows in different masses it's many strengths. It's "SPEED" might be better than light since it can hold back light given that the gravity "Well" is strong enough .

Originally Posted by Mr C

Gravity is a myth.... The Universe sucks !!!!! LoL... Gravity is a unseen but felt and measured dimensional law that shows in different masses it's many strengths. It's "SPEED" might be better than light since it can hold back light given that the gravity "Well" is strong enough .

Gravity is not well understood, but it is certainly not a myth. We experience it every femtosecond of every day. And, no, gravity cannot "hold back" when the gravity well is "strong enough." The gravitational field will red-shift light to DC in the case of a black hole. You can change light's frequency [and wavelength] but not its speed except within a material medium.

Originally Posted by MisterMe

Gravity is not well understood, but it is certainly not a myth. We experience it every femtosecond of every day. And, no, gravity cannot "hold back" when the gravity well is "strong enough." The gravitational field will red-shift light to DC in the case of a black hole. You can change light's frequency [and wavelength] but not its speed except within a material medium.

I love when you say ." The gravitational field will red-shift light to DC in the case of a black hole. You can change light's frequency [and wavelength] but not its speed except within a material medium.
And what's the medium that's causing that ?? If not gravity's ability to "change the frequency and/or speed " then you must have another force in play?? Lights speed can be slowed thru air, water and glass and other mediums, we all know that. A black holes gravity "Well" does apparently retain lights packets/wavelengths to a defined area.(BH) If gravity can cause that to happen, then whatever speed light is experiencing inside the confines is related to the minimum mass of the BH.

Originally Posted by Dr. Ken

Gravity, unlike light, has a decay factor. That being said it cannot travel at the speed of light because the speed of light is a constant.

You are incorrect. Gravity's "decay factor" is that its strength decays proportional to the square of the distance between two bodies. It has nothing to do with the velocity of its propogation, which is indeed c.