"Mr. Lin, since you said that it is mass that causes the distortion of space and thus the phenomenon of gravity, does that mean that only massive stars have this characteristic?"

"I think Lord Harof's theory of gravity has explained this very clearly. This phenomenon is widely present in all things." Lin En replied calmly.

"What about a grain of sand or a stone?" Lydia raised her hand high and asked a question that puzzled most people present.

"Of course!" Lin En nodded and explained. "It's like putting an object into water. Even if it's a grain of sand, it will inevitably displace the water!"

"Then why have we never felt the attraction brought by this so-called... space distortion?" Luo Er couldn't help but stand up. This was also the question that confused him the most.

If gravity exists in any object, then it should exist in them as well. That's why when they walk on the road, the sand and stones on the ground are not sucked over.

"That's because compared to our mass, its impact on space and time is too small. Even in front of a towering mountain, its disturbance to space and time can be almost ignored. Its attraction to you is probably far less than that of a gorgeous lady who happens to pass by!" Lynn said jokingly.

Among the four fundamental forces, although the range of gravity is theoretically infinite, it is the weakest force.

This wonderful analogy made Rolle laugh and cry, but he still asked another important question: "Since the influence of gravity is so weak, how can we be sure that it exists in everything?"

Only great wizards can barely feel the subtle changes in the curvature of space. For formal wizards, if they want to understand time and space, they can only rely entirely on imagination.

"Sir Rawl, in fact, this is exactly the topic we need to discuss today!" Lynn clapped his hands as he spoke. Johnny, Alok and others immediately stepped forward and pushed up a very sophisticated experimental device.

It looked like a beam balance for weighing heavy objects, but a two-meter-long steel wire was tied to the top, making it suspended in the air, with a small ball weighing one kilogram placed at each end of the swing arm.

Are they preparing for a weigh-in? The wizards at the meeting were confused, but they quickly rejected this guess because Lin En asked Johnny and others to move two 50-kilogram iron balls next to the small ball.

Lin En then explained. "As I said before, gravity exists in all objects. They always attract each other. Although it is very weak, it does exist. It just requires some special means to see this disturbance."

"I think you have not forgotten the previous pendulum experiment. It only takes a thin steel wire rope to amplify a slight disturbance. This torsion balance device also uses a similar method. I call it the micro-deformation amplification method!"

According to the law of universal gravitation, the big ball will exert gravitational force on the small ball, and the entire T-shaped torsion balance will rotate an angle toward the direction of the big ball. The greater the gravitational force, the greater the torsion angle.

Then conversely, we only need to measure the angle of rotation of the wire rope to calculate the force on both ends of the swing arm.

After Lin En's explanation, the wizards became very interested in this small and exquisite device and stared at it closely.

"Did you see anything, Pierce?" Alok stared at the small ball hanging on the swing arm. He didn't see any disturbance for a long time. He looked at his companion beside him and asked in a low voice.

"Of course, just like what the professor said, the small sphere is being pulled closer by the gravity of the big sphere..." Peirce nodded pretentiously, also keeping an eye on the torsion balance on the platform. But like Alok, his eyes were sore from watching, but he couldn't detect any changes at all.

But since the professor said this method works, it must be right!

"Mr. Lin En, has your experiment started?"

Lin En nodded and said casually, "Just wait another minute and you will be able to see it clearly!"

Seeing Lin En's certainty, the impatient wizards on the field had no choice but to continue waiting.

The hands of the magic clock quickly passed twelve o'clock! The sun was already high overhead, and the sun was shining directly down.

At the same moment, Lynn picked up an extremely small glass mirror and reflected the sunlight coming directly from the skylight onto the thin steel rope.

It was not until then that many wizards noticed that there was also a strange round mirror hanging at the middle end of the wire rope. After the sunlight hit the center of the round mirror, it was reflected again onto the scale on the opposite side.

"I saw it, it's moving, the light spot is moving!" Lydia shouted loudly.

In fact, Lydia didn't need to remind them. This time everyone could see it very clearly. The light spot reflected on the scale was slowly moving to the right, from the zero mark to the one mark.

"Could this be the effect of the Coriolis force?" a witch suddenly interrupted in a depressing tone.

Luo Er and others immediately thought of this.

Yes, is it possible that the Coriolis force is affecting the slow movement of the ball, just like the pendulum before?

Lin En didn't reply, and directly moved the large round ball that was originally placed on the right side of the small ball to the left side. After a moment, the light spot changed direction and began to shift to the left, slowly returning from the first scale to the zero scale.

Seeing this extremely magical scene, everyone had no more doubts in their hearts, and the only thing left was shock! Even the most demanding and tricky people could not deny the existence of gravity.

After all, the light spot does not move randomly, but changes with the location of the big sphere.

So there is no doubt that this is definitely the effect of gravity! It is the attraction caused by the distortion of space!

Compared to the other wizards who were amazed at the theory of gravity, Harof was more concerned with the ingenuity of the experiment itself.

The gravitational force of a 50-kilogram iron ball is almost negligible, but Lin En used his long swinging arms to amplify this tiny effect once, and then amplified it a second time through light, thus presenting the subtle space distortion that is imperceptible on a normal day so intuitively in front of them!

Harof couldn't help but express the same sigh as Raphael. What on earth was wrong with the other party's brain that he could come up with such a brilliant idea?

(End of this chapter)