Can spacetime curvature be observed? it is mentioned in theory.but its theory till proven?

Question

Are there special instruments to see it?
light can beebent but how can you bend time?let alone space?

Answer 1

Yes, spacetime curvature has been experiementally proven and observed. It is now one of the tools that astonomers use to observe very very distant galaxies. This technique is called "Gravitational Lensing", where one or many large and massive objects (usually they are galactic clusters) are used to act as a lens, magnifying and diverting light from behind these large and massive objects. This bending of light by the large and massive object is based on Einstein's "spacetime curvature" idea: the more massive an object is, the more spacetime curves around it.

"Bending time" means to slow down time. For example, at the event horizon of a blackhole where even light can not escape, time is so bent that it has stopped moving forward. So if you were able to observe objects approaching a blackhole, you will see that their motion becomes slower and slower until they stop moving at all. (However, you must remember that time is relative, i.e. Einstein's Special Relativity. So while you don't see the object moving anymore, the object itself, maybe it's a spaceship piloted by someone, will experience moving faster and faster into the blackhole, and then disppearing into it.)

Answer 2

Which concept of evolution? while you're speaking approximately neo-Darwinian evolution, which could by no ability, nor will ever, be proved. Then there is the subject of organic and organic evolution. identical subject. whether fifty awesome scientists ought to manufacture a dwelling cellular interior the lab commencing from finished proteins (inclusive of enzymes), DNA, the diverse RNA, and all the different aspects that make a dwelling cellular, that would not tutor that it got here jointly all by making use of itself initially. particularly, it may tutor id. the sole ingredient all of us be responsive to for particular is that there are transformations interior the genetic pool of diverse kinds of animals. as an occasion, evaluate the canine. despite the genetic version, all of them stay canines. And apart from, via fact the breed strikes away variety the norm, they alter into much less potential. The technological information shows that the version techniques 0 via fact the breed strikes faraway from the conventional. this is, there's a boundary previous which the genetic version can't pass. however the "concept" of evolution could have us have faith that this boundary has been bypassed hundreds of thousands of time. that's not technological information; that's blind faith. that's an outdated argument: we won't tutor it yet yet might have the flexibility to do this interior the destiny. nicely, it would not ever ensue.

Answer 3

There have been test with done with two atomic clocks - one sent on a jet and the other stationary. The one which was traveling did lose time to the stationary clock - this would tend to prove the speed of light being constant in all frameworks and all the repercussions that go along with it. Does space actually bend/compress? - That may be more of a concept than an actual state.

Answer 4

"Observed" with our eyes, not really.
We "observe" the curvature of space using logic and physics:
Our current knowldge of the laws of physics force us to "imagine" a curved space, because the observations we make only fit our calculations IF the space is curved.
If, tomorrow, we changed the laws of physics, we may as well discover that
- space is flat,
- gravitation does not exist,
- time is a false concept!
The space is "curved" BECAUSE it is the way it obey OUR laws of physics, which may, or may not, be correct...
All experiments we have done "FIT" our laws of physics.
Maybe, one day, one experiment will not work and we will have to go back to the drawing board, as we have made many times.
Remeber that we thought once the Earth was flat...

Answer 5

It has been.
Astronomers measured the amount light from stars was bent by the gravity of the sun during an eclipse on May 29th, 1919.

Answer 6

You don't have space, or time, you have space-time. You gotta take 'em together.
The curvature of space has been demonstrated to occur around stars by stars showing around the sun when eclipsed.

Answer 7

Gravity