Expansion Speed of the Universe?

[CNBA3]

In this thread is to talk about how fast the universe would be expanding due to accelerated expansion of the universe and how that is faster than light.

In this link it talks about how the universe will be .007% times bigger in about a million years.

The most up-to-date volume of the universe is 3.58e+80 meters^3, this would mean that the universe in the future would be around 3.60506e+80 meter^3.

to find the distance covered between the difference in radii from the present (4.40870040022e+26 meters) and the future (4.41511E+26 meters) is 6.4095998e+23 meters

so to find the speed is taking the distance and divide it by time which is 20324700000 m/s or 67.8 x lightspeed.

Thoughts?

 

[DarkDragonMedeus]

Pretty sure Cosmic Inflation theory stuff has been brought up numerous times. And the exact velocity of the universe expansion is hard to pin point and could be inconsistent for all we know.

 

[CNBA3]

Pretty sure Cosmic Inflation theory stuff has been brought up numerous times. And the exact velocity of the universe expansion is hard to pin point and could be inconsistent for all we know.

yeah, on the account of Dark matter accelerating it's expansion and creating new space as well.

 

[GarrixianXD]

H0 = 73.24 ± 1.74 (km/s)/Mpc

 

[GarrixianXD]

Pretty sure Cosmic Inflation theory stuff has been brought up numerous times. And the exact velocity of the universe expansion is hard to pin point and could be inconsistent for all we know.

It's not velocity since it is a vector quantity for a property travelling through space, as speed defines. Ironically, the rate of the universe's expansion cannot be defined with speed, lol.

 

[CNBA3]

It's not velocity since it is a vector quantity for a property travelling through space, as speed defines. Ironically, the rate of the universe's expansion cannot be defined with speed, lol.

You mean with Hubble's Constant to find the drift of distance between Galaxies based on redshift?

 

[GarrixianXD]

You mean with Hubble's Constant to find the drift of distance between Galaxies based on redshift?

Yeah. Hubble constant times the distance in megaparsecs will give you the recessional velocity.

 

[CNBA3]

Yeah. Hubble constant times the distance in megaparsecs will give you the recessional velocity.

I see, thanks I thought we could find something interesting here.

 

[CNBA3]

yeah, I found recently that in simplistic terms, the farther something is from the observer the faster it will move away.

Actually found here that you can use a formula to find the recessional velocity by multiplying redshift frequency with LS constant to get the recessional shift.

Example we will use HD1 Galaxy which is roughly 13.7 billions lightyears from earth and with a Redshift Frequency of 13.27, so multiply that with lightspeed and you get 13.27 times the speed of light.

 

[Da3ggman]

I mean, the universe expanding is literally the stretching of space. So, it's more so the fact that it isn't anything traveling at all; rather, the medium it exists in is being moved itself.

 

[CNBA3]

I mean, the universe expanding is literally the stretching of space. So, it's more so the fact that it isn't anything traveling at all; rather, the medium it exists in is being moved itself.

Okay, just one last question with all this if not actual travel, since the space is expanding, would that be safe to say it is motion still?

 

[Da3ggman]

Okay, just one last question with all this if not actual travel, since the space is expanding, would that be safe to say it is motion still?

No. Motion still requires an object to actually move, and since space isn't really anything physical (just the "space" things can occupy), it cannot be defined as motion.

It's sort of like asking if time has motion. Like, it "moves" forward, but it doesn't really move.

(Also, technically Space and Time are the one thing, but just ignore that for now as it makes things harder to explain)

 

[CNBA3]

No. Motion still requires an object to actually move, and since space isn't really anything physical (just the "space" things can occupy), it cannot be defined as motion.

It's sort of like asking if time has motion. Like, it "moves" forward, but it doesn't really move.

(Also, technically Space and Time are the one thing, but just ignore that for now as it makes things harder to explain)

Okay.