Einstein or Newton tried to explain this phenomenon but the mystery continues to hang in the air.

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Some theories confirm that time passes more slowly in space than on Earth. It is said that space itself slows downtime when you make a special journey at a very high speed. The notion of time and space obeys several often inexplicable physical laws that require observation, reflection, analysis, and demonstration. Einstein, Newton, and Maxwell, the great physicists sought to understand space-time by expounding each of the analogical theories. But how can space-time be explained?

SEVERAL THEORIES AT THE ORIGIN OF SPACE-TIME

Space-time is at the very heart of the foundation of the Universe. It was never thought that a truly satisfactory explanation could be found for this phenomenon until physicists and theorists came across some important discoveries. Some research and experiments have indeed led to much more concrete results, such as those conducted by the famous physicist Albert Einstein. Other scientists such as Isaac Newton and James Clerk Maxwell have also put forward ideas related to gravity and the movement of massive objects in space. But in any case, so far there are no absolute truths; they are based only on complex theories and equations.

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All we can remember is that time is determined by speed as well as gravity. The theory of relativity, the displacement of massive objects and the property of light were then linked to understand the origin of space-time. For example, stars and planets slow down time, just as time flows slower near the sea than from the top of a mountain. You can even feel a small, even tiny difference in time between your feet and your head. But how do you explain the link between speed and gravity? In general, the faster you travel through space, the slower time goes, but even weaker gravity can make time go faster.

The concept of space-time is defined as a physical phenomenon based on Einstein’s theory of relativity and resulting from moving at the speed of light and the movement of masses.

HOW CAN WE EXPLAIN THE BIRTH OF SPACE-TIME?

Henri Poincaré

Before Einstein’s studies, many scientists tried to demonstrate the existence of space-time through research, measurements, and experiments. Towards the end of the 19th century, a large-scale work demonstrated the specificity of the components of light. This led to the hypothesis that the speed of light always remained constant under all circumstances. Henri Poincaré, both a physicist and mathematician, even justified this hypothesis in 1898.
At the same time, other researchers claimed that objects change mass and size according to their speed. Based on these findings, the law of special relativity was created in 1905. This theory explains that the speed of light remained the same for all observers and that this had a relationship between space and time. However, time and space then obey the principle of special relativity and are both modified by the speed of an observer.

It would appear that Hermann Minkowski, a German mathematician, found the answer to the basis of space-time and that it was a single fabric, the union of the two, i.e. of time and space, and that without this union, reality has no place. Of course, this concept results from calculations in relativity theory and quantum field theory.

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HOW CAN WE IMAGINE SPACE-TIME IN OUR REALITY?

According to Einstein in his theory of general relativity, space-time would look like a rubber paper, much smoother and more fluid, and the fabric of space-time has curves that can determine the force of gravity. Massive objects such as humans, the sun, or the earth will distort these curves. These curves will, therefore, limit the way they move through the Universe since objects will take paths along the curve. This movement resulting from gravity acts on the movement made along with the bounces of space-time.

Gravity Probe B / Nasa

More concrete evidence from a NASA mission called Gravity Probe B, launched in 2011, has revealed the existence of this space-time vortex. At the time, its shape corresponded to Einstein’s perception. Moreover, the undulations within the space-time itself could justify the shape of the wormholes. But this remains all the more inconceivable if we consider space-time as a sheet of rubber when it has only two dimensions. Thus, this sheet does not only represent deformations in space but also in time. One can certainly work on more convoluted equations but all this seems to be beyond any knowledge of physical reality.

But the answer apparently lies in relativity even if some explanations are incomplete. Relativity should indeed be combined with quantum mechanics, but this is not totally the case. Subatomic particles and their properties can be well explained, but they should be closely related to the force of gravity. Light is generally composed of particles and photons, and these small pieces of quantized light then make up the Universe. Other theorists have made another hypothesis about the origin of space-time that came from these quantized pieces and thus allows the connection between relativity and quantum mechanics.

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The launch of the Grail Quest mission organized by the European Space Agency is expected to be the last resort to accurately measure the powerful gamma-ray explosions around the planet. This investigation could then demonstrate the basis of space-time relativity and would further unravel all the mysteries of the Universe. But this is still a future project that is unlikely to begin for another decade.

Source : Live Science

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