How does matter tell spacetime How do you curve?

How does matter tell spacetime How do you curve?

When a smaller mass passes near a larger mass, it curves toward the larger mass because spacetime itself is curved toward the larger mass. The smaller mass is not “attracted” to the larger mass by any force. The smaller mass simply follows the structure of curved spacetime near the larger mass.

Who said matter tells spacetime how do you curve?

Einstein’s general theory of relativity can be summed up in just 12 words: “Space-time tells matter how to move; matter tells space-time how to … curve”.

What did Einstein mean by curved spacetime?

“It follows what space does, so if space curves, then light is going to curve,” Speck said. “When you take a particle which has mass and put it to spacetime, then the particle actually distorts the geometry of spacetime which becomes not flat … but curved. … And this is the curvature of spacetime,” Kopeikin said.

How does time move with space?

This form of time dilation is also real, and it’s because in Einstein’s theory of general relativity, gravity can bend spacetime, and therefore time itself. The closer the clock is to the source of gravitation, the slower time passes; the farther away the clock is from gravity, the faster time will pass.

Does spacetime actually curve?

In general relativity, spacetime is not ‘flat’ but is curved by the presence of massive bodies. This artistic representation visualises spacetime as a simplified, two-dimensional surface, which is being distorted by the presence of three massive bodies, represented as coloured spheres.

Did Einstein say space is curved?

Einstein said that space is curved and that matter is the source of the curvature. (Matter is also the source of gravitation, so gravity is related to the curvature—but that will come later in the chapter.)

Is space linear or curved?

As far as cosmologists can tell, space is almost perfectly flat. But what does this mean? The theory of general relativity, under which space itself can curve, allows for the universe to take one of three forms: flat like a sheet of paper, closed like a sphere, or open like a saddle.

Is spacetime flat or curved?

The spatial curvature is defined by general relativity, which describes how spacetime is curved due to the effect of gravity.

Does dark matter curved spacetime?

Dark matter does not bend light itself; mass (in this case the mass of the dark matter) bends spacetime. Light follows the curvature of spacetime, resulting in the lensing effect. In May 2021, a new detailed dark matter map was revealed by the Dark Energy Survey Collaboration.

Can spacetime have no curvature?

In summary, General Relativity allows spacetime to be curved in vacuum. That happens due to the fact that the gravitational field may interact with itself. On a vacuum Universe, if spacetime was ever curved, it would never be flat. If it were ever flat, it would remain flat.

Does time actually move?

Yes, time goes faster the farther away you are from the earth’s surface compared to the time on the surface of the earth. This effect is known as “gravitational time dilation”. It is predicted by Einstein’s theory of General Relativity and has by verified multiple times by experiments.

How does mass bend space-time?

Large objects such as the Sun and planets aren’t the only masses that warp the fabric of space-time. Anything with mass—including your body—bends this four-dimensional cosmic grid. The warp, in turn, creates the effect of gravity, redirecting the path of objects that travel into it.

Does time actually move faster in space?

A clock in outer space moves more quickly than a clock on Earth. Heavy things like planets create a gravitational field that slows down time nearby. This means that a clock on a spaceship far away from any planet would move faster than a clock near Earth.

Why does matter and energy curve spacetime?

Matter curves the spacetime because (experimentally verified and mathematically natural) Einstein’s equations that govern the spacetime curvature say that the local-curvature-encoding Einstein tensor Gμν is proportional to the stress-energy Tμν.

How is it that according to general relativity space can be curved?

Answer and Explanation: According to the theory of relativity, everything of matter in our universe warps the space-time continuum. The extent to which the warping happens depends on the mass of the object; the more massive the object the greater the warping. The warping or curvature manifests as a gravitational field.

How did Einstein’s theory of relativity on curved space differ from what Newton was saying?

But in Einstein’s General Relativity, both space and time are distorted by the presence of mass, whereas in Newton’s gravity, only an object’s motion through space is affected by the gravitational force.

Why does matter distort spacetime?

Since matter carries energy (via Einstein’s famous relation that energy is mass times the speed of light squared), such objects will have a gravitational field and so they will distort space-time.