Albert Einstein's discoveries regarding gravity and the theory of relativity have had a profound impact on the scientific community. A prime example is gravitational waves, a feature of space with a wide range of applications. The detection of this particular characteristic of the universe was celebrated with the Nobel Prize in Physics.
Everything that is known about gravitational waves is still the tip of the iceberg in astronomy. However, thanks to various experiments, hypotheses and theories, they have been constantly detected in space. Therefore, it is possible to study their behavior, as well as the repercussions on space-time as it is known.
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Enter the mind of Einstein and discover what gravitational waves are!
Fuente: El País
It was 1915 when Albert Einstein published his theory of general relativity, which encompassed several aspects. Among them was his concept of gravitational waves, how they are produced, and their behavior.
Given this premise, it was found that gravitational waves are nothing more than space-time disturbances secondary to a massive event. For example, when two objects orbit each other, the merger of two giant black holes, or the cataclysmic explosion of a supernova.
In truth, the name of the phenomenon itself doesn't matter, but rather its role in gravitational waves. Once one of these celestial events occurs, these disturbances or ripples in spacetime come into play. They travel at the speed of light, that is, about 300 kilometers per second.
The consequences of experiencing the effects of a gravitational wave depend largely on the object's position. At the exact location where the ripples originate, it is speculated that time could briefly accelerate or stop . However, at vast distances, it could alter planetary orbits or the trajectory of a galaxy.
Are Einstein's gravitational waves of any importance? Find out the truth!
It was in the year 2015, the date exactly 100 years after Einstein's theory of gravitational waves, that they could be detected. According to Isaac Newton and his traditional laws, it was established that the gravitational field of an object moved along with it.
This meant that an object of that magnitude would be perfectly capable of moving even faster than the speed of light. However, thanks to Einstein's theory of gravitational waves, it was definitively established that this concept was incorrect.
Therefore, it is established that no element in outer space is capable of breaking the light barrier. On the contrary, it propagates at that speed, producing the aforementioned effects on entities near or far.
With the detection of gravitational waves, Einstein's theory of relativity is more alive than ever and increasingly entrenched. No one, up to this point, has been able to influence science more than the German theoretical physicist and his awe-inspiring findings.
The big reveal of the year 2015! Discovery of gravitational waves
You might think that gravitational waves are easily observable, but that's not the case. They require delicate instrumentation specifically designed for this purpose.
These instruments are known as interferometers, highly sophisticated engineering feats designed to perform their function. Currently, two of the most powerful, Advanced LIGO and Virgo, are located in the United States and Italy, respectively.
Both consist of a system based on lasers reflected in several specialized mirrors, which from time to time generate an interference. When a gravitational wave occurs, this interference automatically suffers a brief anomaly or disturbance triggered by the same undulation.
I understand this; the first gravitational waves were detected 100 years after the promulgation of his theory—a great indirect tribute to Einstein. Thanks to exhaustive studies of these anomalies, along with interferometers, the results were successful and finally announced in 2016.
Now, with the ability to reproduce this event or to detect it more clearly, it opens a new stage in astronomy. To understand gravitational waves is to understand everything concerning the massive cosmic events by which they are produced.
Likewise, gravitational waves were present during the Big Bang , the place where everything began. An explosion that changed nothingness into everything, so immeasurably immense that even today, it is possible to detect remnants of gravitational waves resulting from the event.
Therefore, it not only predicts new hypotheses about the behavior of certain celestial bodies, but also about the beginnings of the universe. Without a doubt, a deserved Nobel Prize for those who managed to decipher a new enigma of the cosmos.
Still hard for you to understand? Learn about examples of gravitational waves!
Source: El Periódico
To better explain how a gravitational wave is produced, a series of analogies have been used to promote understanding . Some of these are quite well-known within the scientific community and widely used.
However, the first of many was postulated by Albert Einstein in 1915. The theoretical physicist argued that gravitational waves are similar to the ripples in water when a rock is thrown onto its surface.
The throwing of the stone would be the massive, high-powered event that triggers the ripples , and as they propagate, they generate various consequences. All debris in the water near the path of the ripples will be affected by them, either being moved away or having its behavior altered.
Another example of gravitational waves is known as the "trampoline". A heavy object lands on your mattress, causing a depression in the bed. If another object is nearby, it will be affected by this and will be drawn into the event.
Applied to the universe, planets and their immense size warp spacetime , attracting smaller objects with their gravity and orbits. This example of gravitational waves illustrates a constant phenomenon.
However, there are other massive events, like those already mentioned, which, instead of being constant, gradually propagate gravitational ripples . In this way, instead of attracting, they push or distance other nearby entities.
