Gravitational waves were a prediction made by Einstein in his general theory of relativity 100 years ago.
General relativity believes that any object with non-zero mass will cause space-time to curve. This curvature will form a "field" that extends infinitely outward. All objects, including light, can only move along geodesic lines in this curved space-time.
The effect of space-time curvature is manifested in the form of gravity.
In this way, Newton's theory of universal gravitation in classical mechanics has achieved a qualitative sublimation, explaining from the root how gravity comes from. According to the space-time curvature theory, any matter, as long as it has mass regardless of its size, will bend the surrounding space-time.
These material movement changes will cause disturbances to the surrounding space and time, forming circles of ripples like a stone thrown into water, spreading to the distance. This is a gravitational wave, also called a space-time ripple.
This kind of wave is not transmitted instantaneously, but propagates at the speed of light.
However, more than 100 years after Einstein's prediction was made, scientists have exhausted all methods and have not been able to detect the existence of gravitational waves.
Because gravitational waves are very weak waves, they are difficult to detect.
In the 1970s, Professor Taylor and his student Hulse of the University of Massachusetts used Einstein's theory to accurately calculate the orbital changes of the two neutron stars by observing the phenomenon of twin neutron stars entangled with each other, thereby indirectly confirming gravity.
The existence of gravitational waves. As a result, they won the Nobel Prize in Physics in 1993, but direct evidence of the existence of gravitational waves has never been obtained.
And now, the question raised by the other party is how to directly confirm the existence of gravitational waves!
This is so difficult!
It’s simply incomprehensible!
…
"You guys are so shameless! This is simply a problem of the century!" Wang Kai blushed and felt thick-necked.
"But the professor at our school discovered indirect evidence of gravitational waves! This shows that in the field of physics, we white people are still the world! You yellow people are just picking apart others' wisdom -"
The students opposite were still boasting, but Su Sa had already said coldly: "Prove gravitational waves? Is it difficult?"
With that said, Su Sa walked down from her seat and came to the blackboard in the middle of the stage.
"Su Sa! What are you doing! This is quantum physics! You don't understand! Don't show off!" Wang Kai yelled.
But Su Sa remained unmoved.
"Captain Cheng, take care of yourself!"
Wang Kai looked at the head of the delegation.
The leader's surname is Cheng. Many people don't know that he is actually the head of the four major families in the imperial capital, Cheng Yaozong, the current head of the Cheng family!
Logically speaking, Cheng Yaozong would not participate in such activities.
But the Cheng family has always loved talents.
Want to recruit young talents.
Only then did he choose to lead the team himself.
Because these are the best young people in China.
During this period, Cheng Yaozong watched with cold eyes and had a very good impression of Su Sa.
Low-key, reserved, talented, and beautiful.
He is simply someone else’s child!
Cheng Yaozong sighed more than once, how wonderful it would be if he had such an outstanding daughter?
As for Wang Kai?
Arrogant, exaggerated and utilitarian.
Cheng Yaozong had a very bad impression of him.
Now hearing Wang Kai's words, Cheng Yaozong said coldly: "Academic exchange is about speaking freely, and you have to allow others to speak out!"
Wang Kai didn't dare to say anything anymore.
But I hope in my heart that Su Sa will make a big mistake!
Su Sa stood on the stage and talked eloquently: "We can detect gravitational waves through black hole collisions. Black holes are the top extreme objects in the universe... When black holes collide, the energy and gravitational waves erupted are of course more powerful and easier to monitor.
Here it is... In addition to black holes, the source of gravitational waves detected by humans comes from neutron stars..."