what is speed of the universe in the time dimension?

Answer 1

motion and speed are all relative to the perceiver. So, it depends on who's looking, where they're looking from, and what they're looking at. Since the universe by definition includes everything, there isn't a place which is separate from the universe from which we could take measurements.

Answer 2

Big-bang Theory: Universe is expanding!!!!!
If universe is expanding? What happens to the light which is emitted by a star? Will it go outside the universe? If you say universe has no boundary, you have the answer "Universe is not moving, but expanding". Again, speed of an object is inversely proportional to its mass. An electron has mass (510 electron volts) so it CAN'T travel at the speed of light. If, universe has some mass (incomparable), and if it is travelling/expanding, wont; the light crosses the boundary of universe? What's beyond that???????




To answer the broader question in detail, we need to specify what we mean by the universe "expanding faster than the speed of light." The universe is not a collection of galaxies sitting in space, all moving away from a central point. Instead, a more appropriate analogy is to think of the universe as a giant blob of dough with raisins spread throughout it (the raisins represent galaxies; the dough represents space). When the dough is placed in an oven, it begins to expand, or, more accurately, to stretch, keeping the same proportions as it had before but with all the distances between galaxies getting bigger as time goes on.

The bottom line is that different pairs of galaxies are moving at different speeds with respect to each other; the further the galaxies are, the faster they move apart. So when we ask whether the universe is "expanding faster than the speed of light," I am going to interpret that to mean, "Are there any two galaxies in the universe which are moving faster than the speed of light with respect to each other?"

So how do we measure this? As discussed in a previous question, the universe's expansion is determined by something called the Hubble constant, which is approximately equal to 71, measured in the technically useful but conceptually confusing units of "kilometers per second per megaparsec." In more sensible units, the Hubble constant is approximately equal to 0.007% per million years -- what it means is that every million years, all the distances in the universe stretch by 0.007%. (This interpretation assumes that the Hubble "constant" actually stays constant over those million years, which it doesn't, but given that a million years is extremely short on cosmic timescales, this is a pretty good approximation. It also assumes that when we talk about the "distance" between two galaxies, we are referring to the distance between them right now -- that is, the distance we would measure if we somehow "pressed the freeze-frame button" on the universe, thereby stopping the expansion, and then extended a really long tape measure between the two galaxies and read off the distance.



the apparent speed at which the galaxies move apart from each other is greater by 71 kilometers per second. Since we know that the speed of light is around 300,000 kilometers per second, it is easy to calculate how far away two galaxies must be in order to be moving away from each other faster than the speed of light. The answer we get is that the two galaxies must be separated by around 4,200 megaparsecs (130,000,000,000,000,000,000,000 kilometers).

Answer 3

Speed in the time dimension is relative to speed in the space dimension. That's fundimental to Einstein's special theory of relativity. If an object is stationary relative to itself (as every object is), it's going the speed of light through time (one second per second), and stationary through space. If another object is traveling at the speed of light through space (relative to something else), it's stationary in time, frozen (as seen from the something else). That's what makes it possible to travel a billion lightyears in the blink of an eye if you're going the speed of light (through space).

Answer 4

Hai,
Universe is expanding @ 48 miles/sec per 3.26 million light year (OR)
77 km/sec per 3.26 million light year.

Regards
Diwakar

Answer 5

About 60 minutes per hour from your perspective.

Answer 6

It's about 1 second per second.

Answer 7

260 Km/hour

Answer 8

how can u work on that ,obviouly the speed will be relative!!! and we r still digging the rabbit hole !! i mean time!!

Answer 9

a wobbling costant .