Seeing that Lin En was "speechless" under Harrov's questioning, she could only excuse herself by saying she didn't know.
The wizards of the prophecy school who were originally ashen-faced suddenly became frightened again. Yolande asked as if he had found some breakthrough.
"Mr. Linn, if I'm not mistaken, you're not a great wizard yet, so you can't use force field magic, right?"
Yolande's question was very fatal, and many wizards who supported Linn immediately discovered a serious problem.
Since the other party is not a great wizard and does not even know force field magic, how did he figure out this gravity formula?
"The formula of universal gravitation was calculated by me based on the three laws of star movement proposed by the legendary wizard Kepler, and then using arcane mathematics." Linn replied with a calm expression, and repeated the three laws.
Last night, he used this method to confirm that the law of universal gravitation still applies in this other world, so he acted very calmly when faced with Yolande's inquiry.
"Calculation? How to calculate?" Another witch from the prophecy school jumped out immediately. "According to you, if you want to calculate the universal gravitation, you need to know the so-called gravitational constant, the distance between two stars, and their mass."
"A star is extremely huge, tens of millions of times larger than the largest Mount Kogal in the Wizarding Land, and the distance between them is so far away that it is unimaginable. How to measure this? Is it possible to measure it with a ruler? Or is it possible to put the continent under our feet on a scale and weigh it?"
"If that's the case, then what should be placed on the other side of the scale? Is it another star?" the witch said with a sneer.
In the discussion hall, thousands of wizards started a heated discussion.
Because the picture of star movement that Linn showed them before was too perfect, many people were still willing to believe that the gravity formula proposed by Linn was true.
But no matter how hard they thought, they could not think of any way to calculate the weight and distance of these stars.
Raphael looked at Linn and sighed. He suspected that this formula of universal gravitation was probably a purely theoretical theory that had not been verified.
Originally, this was nothing. After all, there were many purely theoretical theories, and this one was not lacking. However, it attracted Lord Harrov's attention, and he even paid attention to it to the point of issuing the Corona Medal.
If this theory turns out to be wrong, then no matter how much praise Linn received before, the fall will be just as tragic.
Yolande and others let out a sigh of relief. They had reason to believe that the other party's so-called formula of universal gravity was simply made up!
Lin En looked at these people with eyes full of pity, as if he were looking at a fool...
"Don't think this process is too difficult. Ladies and gentlemen, as long as you use some basic mathematical knowledge, even a few of my apprentices can calculate the mass of a star and the distance between them."
Lin En said in a calm tone, but in the eyes of the wizards of the prophecy school, this was just nonsense. If Lin En had a way to calculate it himself, they might still believe it, but if he said that it was even possible A wizard apprentice can calculate the data of the stars, which can only be described as outrageous.
The eyes of thousands of wizards immediately turned to Jonny, Lydia, Alok and Peirce...
I'm not, I don't, I can't figure it out!
Alok was about to cry now. He had long discovered that Professor Linn might have had some unrealistic illusions about their abilities.
In fact, they are really not that awesome!
How could I possibly calculate such huge stars, how heavy they were, and how far apart they were from each other!
Lin En seemed not to see the resentful looks from Alok and others, and continued to speak. "If you want to measure the distance between stars, you need to first find a reference object in the vast universe, and the best reference object is the planet under our feet! As long as you know its data, everything will become easier! "
Yolande sneered. He wanted to see how the other party calculated the various data of the continent under his feet.
Lin En looked at Alok and the others, and suddenly asked. "What should I do if I want to know the circumference of a circle?"
"You can multiply the diameter by the circumference, professor!" Lydia shouted loudly, and she still remembered this very clearly.
"What if we don't know the diameter data?" Linn asked again.
Lydia's little face froze immediately. Alok and Peirce thought hard for a while, and finally Jonny pointed to the sand table on the high platform and responded.
"A circle has three hundred and sixty scales, and each scale is equal, so I can also determine its circumference by measuring the length of each scale segment!"
"That's very well said, Jonny, you have been doing very well in the Mathematical Olympiad." Linn laughed and then continued. "The planet under our feet also happens to be a circle. Can't we just use the same method to calculate it?"
As soon as these words came out, the wizards in the hall were stunned for a moment, as if this was the case.
"The planet under our feet is extremely huge, how should we judge the angle and distance?" Harrov frowned. He had flown to an altitude of hundreds of thousands of meters. With the help of magic sight, he could see slightly Curvature cannot be artificially divided into equal scales like the sand table under your feet.
Lin En did not answer directly. He walked to the sand table and asked. "I heard that every year in mid-July, under the sunlight at noon, the shadow of the Corona Tower will overlap with the tower body. Is this true?"
"Not bad!" Raphael on the side nodded.
"Then I believe you have not forgotten that when I introduced the changes of the four seasons, I mentioned the direct sun point. The reason why the corona tower has no shadow is precisely because at noon in mid-July, we are in direct sunlight. Point!"
"Let's make it the zero scale!" Linn walked to the sand table, took a wooden stick, and placed it on the place representing the zero scale in the sand table, and then put down the second stick a little further away. A wooden stick.
"Then we only need to use magic to erect a towering pillar as far away from the Corona Tower as possible, and measure the length of the pillar and the shadow respectively. Can't we calculate the angle between the center of the earth?"
"Using a tall column as the base point and using the sun as a ruler... Genius, what a genius idea!" Harov said excitedly. In this way, the column is like a straight line on an arc, and the shadow is the other side of the right angle. , this is a simple problem of finding the vertex angle of a right triangle!
Raphael and others looked at the two wooden roots placed on the sand table, and couldn't help but gasped. How could this be done?
