S1l3nt V1p3r
Sr Member
So... Many... Theories... So... Little... Processing.... Capacity...
UUUUUUUUUUGGGGGGGGHHHHHHHH....! *Die*
UUUUUUUUUUGGGGGGGGHHHHHHHH....! *Die*
garth said:NOOO! wave's cannot increase in velocity, however this increase changes the frequency through doppler shift. newtonian mechanics do not work here! This is why the light we recieve from the end of the dark ages(not the human one) is so shifted into the microwave spectrum that very little detail can even be observed, also it is rediculously far.
Please could everyone take a intro to astronomy course! Sorry, I can see that I am ranting now.
BFDesigns said:I have taken a few astronomy courses and I am currently taking a physics course that is intensive into the study of visible light. The reason why the study of physics exists is because of the way that physics operate within our universe. That is to say that there may very well be a separate set in other universes. Because space is so incredibly vast, in order for us to shrink it we compartmentalize our universe as the only one in existence. It more than likely is not. Our universe is a sphere of light and sound and marvelous wonders but in all likelyhood it is one out of a very large number. And here's where the big bang explosion and the warp drive theory have similar properties. Imagine if you will that the fabric of space is like the surface of a pond. What happens when you throw a stick of dynamite in? The explosion causes a huge shockwave that distorts the surface of the water (and everything underneath) and creates waves that will actually push moving objects away at the speed of the wave. Apply that to the physics of our universe and you will get whatever objects being pushed along at light speed due to the shockwave effect on the fabric of space pushing the ripples along at light speed. Because there is no opposing force in space (at least momentum-wise) the objects that were thrown away from our universe at light speed will remain at light speed indefinitely. That is why the light that these objects emitted - if any at all - will never reach us.
Think of this: a galaxy that was 13.21 billion light years from the epicenter of the big bang. All of the sudden it is pushed out of its place in space by the shockwave from the massive explosion 13.21 billion years later. The light was .01 light years away from the edge of our universe (currently) before it was displaced and therefore the light that it emitted will never reach us because of it being outside of our universe to begin with and will be traveling away a 1/100th of a year later at the speed of light.
Still not following? How about this then. You are sitting in a car at 0 mph trying to get to a point on the horizon which is about 4 or 5 miles ahead of you depending on your sitting height within your car (assuming that this is a flat sphere that you are traveling on, variable terrain may negate this). There is a car just beyond the horizon traveling at 1mph. As you step on the gas both cars increase in speed in direct correlation to one another. You will never see the car you are trying to catch up to because it will always be just ahead over the next horizon line moving farther and farther away over time. This is the essence of this theory; that you cannot see objects moving along outside of the universe because they are moving slightly faster than our universe is expanding - faster than the speed of light due to a ripple in the fabric of space time.
UNSC_Leatherneck said:All well and good, and a reasonable theory. Except you misunderstand the Big Bang. The matter in the universe is not moving along a shockwave moving out from the origin of the big bang. It is space itself that is expanding.
Where'd that theory come from? It's really interesting, but doesn't that assume that the light from that galaxy outside "our" universe doesn't have a way to cross the (ok, i'm probably making up this term) "Universal border" that seperates "our universe" from "outside"? Because the light will be traveling towards the epicenter as the shock wave, and the borders of our universe are expanding outwards, so you have to assume that the light will cross that border at some point in time.
Am I making sense here?
EDIT: unless we're assuming the shockwave will prevent the light from reaching us?
AF2OOXL said:heh looks like Ive missed a bit of the discussion... if the universe is everything what is it expanding into?? and with white holes how could they be proved to exist. wouldn't it jut be reflecting everything sent at it with the same force as a black hole? or would it be in a black hole out a white lol wormhole si-fi stuff. idk
Ah, but that would imply a stationary absolute frame of reference, which does not exist according to the Special Theory of Relativity. Space is not expanding within the borders of our on universe, it is the universe itself that is expanding, timespace included. Discussions of other universes outside our own are not valid, since those hypotheses can not be tested scientifically. It is a neat idea to think of them, though.BFDesigns said:That's exactly what I was saying. Space is expanding within the borders of our own universe which means that it is pushing the space around its borders outward.
UNSC_Leatherneck said:Ah, but that would imply a stationary absolute frame of reference, which does not exist according to the Special Theory of Relativity. Space is not expanding within the borders of our on universe, it is the universe itself that is expanding, timespace included. Discussions of other universes outside our own are not valid, since those hypotheses can not be tested scientifically. It is a neat idea to think of them, though.
I agree, but the inability to test, either through lack of technology or insight, renders any discussion of alternate universes moot.Bloodl3tt3r said:You never know, it could be that we just don't have the level of technology/understanding required to come up with a way to scientifically test the possibility that other universes exist, which is why we say that it's unable to be tested scientifically.
We just don't understand where we would begin.
UNSC_Leatherneck said:I agree, but the inability to test, either through lack of technology or insight, renders any discussion of alternate universes moot.
...Dyson sphere existing in a larger universe, and that it never ever changes its outward appearance and size...
Odessa-086 said:String theory doesn't deal with alternate universes, it only suggests that our universe's space-time continuum has 11 dimensions. The theory only attempts to explain the quantum theory of gravity, and is also a highly experimental and theoretical branch of physics not even fully accepted yet.
Just one question on that experiment in a vacuum... does a "vacuum" suppose that there isn't dark matter in there as well? Since apparently (from what I understand from reading things), dark matter has gravity, you'd assume that the presence of dark matter would affect the path of the photon. And I don't think current human technology has a way of affecting dark matter... correct me if I'm wrong?