How can physicists prove their therioes of space/time and black holes?

Question

I know that physics has to do a lot with time/space but how can physicists actually prove that what their saying is true,take for example If a physicist says that we have parallel universes,how can he prove that we actually do and I've heard countless things about space/time but its all just things that they can never prove.I'm not saying,I don't believe them I just want to see how they can prove these things.It's not like Physicists can form an experiment to see if a black hole would send you back in time.

Answer 1

There's no evidence for parallel universes, so it's not accepted science. But there are plenty of ways to detect black holes, and we have, so that is. Most of physics and astronomy is testable and based on observational evidence and/or experiments. Black holes don't send you back in time. They're just dense, dead stars. Sounds like you're getting your 'science' from popular TV shows - no wonder you're skeptical.

Answer 2

"...a physicist says that we have parallel universes,how can he prove that we actually do..."

Few scientists *say* that parallel universes exist. What they say is that it's *possible.* Big difference.



"...space/time but its all just things that they can never prove..."

Space/time *is* distorted by the presence of mass. This has been proven over and over again since Einstein first developed the theory. Look up how so-called gravitational lensing works and you'll see what I mean.



"...Physicists can form an experiment to see if a black hole would send you back in time..."

Once again, time dilation (that's what you're talking about here) has been proven countless times by many different experiments.



Worm holes are consistent with the laws of physics. That makes such things *possible,* but as you say no one has ever found one.



"...black holes exist,anyone can prove it by pictures but how do we know what happens within it and the effects of it..."

Up to a certain point, what goes on inside a black hole can be *assumed* based on existing physics. Beyond that region of a black hole called the event horizon, we know absolutely nothing, nor do the known laws of physics work.

Answer 3

Well, it differs form theory to theory.



Black Holes: We know that they exist because of the effect of their gravity. By observing the orbits of stars flying around black hole, and by observing the deflection of light by the immense gravity of the black hole, we can know where they are and what their mass is. The claim that a black hole would send you back in time is science fiction, not science, and not made by scientists.



Parallel Universes: They are not part of any accepted THEORY as of yet. They are sometimes put forward as a HYPOTHESIS to explain something, but no physicist on earth will claim that he has proven that parallel universes exist.



Please provide better examples for THEORIES that cannot be demonstrated to be true, and then we'll talk again :)

Answer 4

Space/time is based off Einstein's theory of relativity and has been proven in experiments. For example, atomic clocks in orbit tick slower than clocks on Earth because they're going moving faster (aka time dilation). Other things are proven by observing objects in space. This is how they know about black holes. First the math said they'd exist and then they started finding them in space. Things like parallel universes and wormholes are only theoretical and have never been observed. They are not proven, just theoretically possible going solely by the math.

Answer 5

No black hole has ever been detected. They remain purely theoretical constructs and some scientists have worked out that it would be impossible for a black hole to actually form in the first place...



http://news.sciencemag.org/sciencenow/2007/06/21-01.html?etoc



Many observations that scientists make get attributed to one phenomena despite there being a number of possible causes. There is a lot of bias involved in scientific research. Research that looks to support standard theory is heartily embraced, while research into alternatives is supressed and any scientists daring to do such research risks losing their positions. This is what happened to the notable astronomer, Halton Arp, as this documentary attests...



http://www.youtube.com/watch?v=1yTfRy0LTD0&playnext=1&list=PL35A32C6E877FEAC3

Answer 6

Science is never proven. It only looks to disprove. Evidence to support a hypothesis can give it merit, and any theory that makes accurate predictions is legitimate, even if it is wrong, like say, Newton's Model of Gravity, which works perfectly fine for all non-relativistic purposes.



But at any point in time, any scientific theory, no matter how much observational evidence supports it, can be put in jeopardy with a contradictory finding.

Answer 7

With mathematics. Take some high school math (geometry) where you have to logically prove theorems. THAT's how scientists prove things. Mathematically you can have an infinite number of diemnsions. By mathematical extension, there's nothing that proves alternative or parallel universes DO NOT exist.

Take a linear algebra course or matrix algebra math course. Calculus 3 is a PRErequisite course for linear/matrix algebra. Things CAN AND ARE proven over and over and over again. THAT's when a theory becomes a scientific LAW.



http://wilstar.com/theories.htm

Answer 8

no-one can ever "prove" anything to another individual. "Proof" is a subjective and personal experience. If you accept something as true for you then it has been proven by yourself to yourself.

I have written a book about time and space and all the peculiarities surrounding them.

'A NEW FORM OF ENERGY; ITS DESCRIPTION; ITS GENERATION; AND ITS APPLICATIONS' (Amazon).

My website is... www.energyandphysicsatotalbreakthrough.com

Answer 9

they could't 'coach' thought on the point you communicate. they could basically artwork out ones that designate what we do see, and boost them hoping they'll clarify issues we've yet to be certain. meanwhile, we in simple terms use what works.

Answer 10

Why don't you ask the physicists?

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