Is Space Really Curved? Real Shape Of Spacetime

According to Albert Einstein's general theory of relativity, gravity is no longer a force that acts on massive bodies, as viewed by Isaac Newton's universal gravitation. Instead, general relativity links gravity to the geometry of spacetime itself, and particularly to its curvature.

In classical physics, time proceeds constantly and independently for all objects. In relativity, spacetime is a four-dimensional continuum combining the familiar three dimensions of space with the dimension of time.

To account for gravity in relativity, the structure of this four-dimensional spacetime must be extended beyond the rules of classical geometry, where parallel lines never meet and the sum of a triangle’s angles is 180°. In general relativity, spacetime is not 'flat' but is curved by the presence of massive bodies.

The artistic representation visualizes spacetime as a simplified, two-dimensional surface, distorted by the presence of three massive bodies.

The curvature of spacetime influences the motion of massive bodies within it; in turn, as massive bodies move in spacetime, the curvature changes and the geometry of spacetime is in constant evolution. Gravity then provides a description of the dynamic interaction between matter and spacetime.

One way to determine whether space is flat or curved is by testing Euclidean geometry in these spaces. This is geometry performed by Euclid, a mathematician from Ancient Greece that wrote up all the formulas you learned in high school geometry. For example, in Euclidean geometry, a triangle’s angles add up to 180 degrees. Not in curved space.

It’s because the “curvature of the straight lines”, well, what an oxymoron; anyways, the curvature of the straight lines causes the angles to be bigger. You could draw a triangle with three 90-degree angles. Just think about that for a minute.

Project Head: Rajkumar Shukla

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#universefacts #spacefacts #spacetime

[mitchellminer]

Your representation of curved spacetime is better than most. Good job all around.

[bernieflanders]

And Einstein discovered these strange properties of reality just by pondering what it would be like to chase after a ray of light.

[preparedsurvivalist]

Its not that space itself is curved. Too many will miss that. Its only when objects travel through time do they follow what appears to be geodesic trajectories, or curved lines. Without time and a rate of travel, all objects in space are confined to a single point, which can not curve, move, or do anything in the space/time realm.

[Terry]

Thank you for saying "space" and not "spacetime". Too many people trying to say the universe is 4 dimensional or higher when it hasn't been proven

[cringe]

the guy sounds like raj from big bang theory series

[jasonhayward]

Factor shear modulus, tensor, damping and magnetic fields the deviation of a xurve may or may not produce gravitational particles in each flex. Floaters meandering .spinners unless fields are present or not .

[srinivasaraothota]

What makes mass to produce gravity is not well explained even today. Am I correct? And consequently how bigger/larger gravity pulls the smaller one is also not available

[nagendrakumarcr]

Who knows “as objects gets distant, our eyes conforms it to spherical shapes”

[unknownplayz_xd]

Your voice and videos both are awesome.

[typingsquirrel]

Great to see a video of Einstein even if for 1.5 seconds !!

[HellonihaoJohnnyHola]

Foreigners are revealing and interested in advanced technology of ancient bharat and their culture by reading our scriptures

And indians going to western culture and appreciating western and following them c

[rickelectric]

People have been takin' in by the rubber mat for far too long! It's not an explanation. It's lazy thinking manifested as graphic design. It demonstrates nothing tangibly real other than the elastic qualities of rubber.

[zackerymeltonturdle]

Oh yeah, gravity. Thanks for teaching me that.

[realmenarzo]

Thanks to the team of World of Science 🙏

[craigbarkle]

The Hubble Telescope proved that distant far away points are red-shifted at the same increment proportionally to objects that are near. Spacetime has done measurements detailing the universe is flat as space expands at all points at all times. For gravity of Earth or The Sun use s=2rp^2 of the object of which has the bow in gravity.
And be cool.

[drawing-ology]

Yes 2 parallel walking ligns can collide

[edwardslusarski]

Think spatial displacement and spatial density rather than "curved space" then get back to me.

[ruttolomeo]

Interesting and well explained, love the thick Indian accent! Keep it up pal

[danmiller]

Actually space curves around me like water curves around a fish..

[codyhughes]

I wish we illustrsted this differently sometimes. I feel it throws some people off. The suns moving and its like were caught in the wake. This really simplifies that.