I have heard over the last few years, that we do not live in a static universe. In fact the universe is not just expanding, it is accelerating at a faster and faster rate. This is due in part to dark energy. So why does this only effect galaxies and really large objects, but not planetary systems, or people, or atoms? We see the red-shifts in galaxies, but why not closer to home?

Einstein first said it ...

And, from where I sit ... it VERY much does effect atoms, molecules, beings!

Local area... hard to measure at such a scale.

Movement of local is not large enough to measure against a universal pattern.

Movement within local is relative... and therefore not noticed against an extra-glactic scale.

..so should we set our clocks ahead,or back..an hour..

Neither. You'll need to make them run progressively faster to compensate for the time dilation from the acceleration. Or maybe it's prograssively slower? Pick your frame of reference and adjust accordingly.

Because, gravity becomes dominant on smaller scales. Clear up to groups of galaxies that are close enough together. And, of course, on the atomic scale electromagnetism and the nuclear forces dominate.

It's predicted that in the far future our local group of galaxies will be the only things visible to us in the universe. And given enough time they will eventually coalesce into a single super galaxy that will eventually collapse in upon itself until be become a single black hole.

At least that's where the current theories are pointing anyway.

hmmmmm. I'm not sure about that but I will look into it. Some of our local supercluster are actually being pulled towards each other by an object that astronomers refer to as the Great Attractor. Not sure about the time acceleration thing.

Abra beat me to the punch. I second his answer. It is (believed to be) occurring at local levels - but because of the above factors, it has no noticeable effect at local levels.

A.B.'s answer is also true



I'm just here to quote other people.

seeeeee.....and i was flamed for saying time was not linear... .....am not crazy....am not...

life and time is like a roll of toilet paper

the closer you get to the end the faster it goes

When they clearly have no idea what they are talking about, I try to ignore the flamers. I wondered if you were referring to relativistic time dilation, or the the weird things that happen near black holes.

It would seem that the acceleration effect is what someone on this thread pointed out earlier, a scale phenomenon. Therefore, supergroups and clusters of galaxies would appear to move away much faster than a smaller object, such as a star, a planet, a person, or a molecule of Hydrogen. Much as a baseball sized hole would be noticable on a Boeing 747-400, but not on a replica model 1/1000th scale smaller. This explanation seems to be plausible.

My question is how does this effect me and why should I care?

yep!

I don't claim to understand but is this time acclerating It feels that it was the year 2000 just last year. lol I mean when was 9 the year took forever to past but now that I'm older time seems to fly, children grow up so fast.

Could it be that as the universe expands time acclerates just as fast?

look:

the galaxies are moving by themselves to a certain direction





the galaxy itself spins like a giant hurricane





within the galaxy,the stars are moving



withing a solar system, the planets are spinning around a star.



(but they are also traveling along with the central star)



So just think about it.




We are never at the same place.

i disagree with all this galaxies collide with each other so one of them is moving faster while the other isn't ....seriously our galaxies are moving to some huge ACME magnet?...lol our universe is constantly destroying and creating if this wasn't so then how did blackholes form....time isn't moving faster human progress is

It's keeping up with OUR thoughts...

our universe created us so without it we wouldn't be here to even have thoughts...see what mean,kind of?