Amid the gaze of thousands of eyes, the swinging iron ball slowly knocked down the wooden bar representing fifteen degrees.
The traces carved into the sand table by the swinging hammer looked like delicate petals, exuding an extreme sense of beauty.
These are the lines representing the truth of magic. Lynn pointed at the sand table, looking at Yulande, and said teasingly.
"I think it's quite clear, isn't it, Mr. Yulande?"
"This is the evidence you were looking for. The planet's rotation has an impact, but this force must be amplified through the swinging pendulum to be visually demonstrated before us."
Yulande sat pale and dumbfounded on the ground, gazing at the iron ball that continued to swing without saying a word.
Beside him, a divination witch was hysterically shouting, "This can't be, it can't be. You must have used magic on the pendulum."
Upon hearing this, several prominent wizards on the scene frowned, their expressions displeased. With or without magical fluctuations, couldn't they sense them?
Lynn shook his head as he looked at the divination witches who were still unwilling to accept the facts and said.
"The materials I used aren't difficult to obtain, are they? Anyone can perfectly replicate this experiment under the same conditions."
"The truth is right there, unaltered by anyone's will. The world experiences day and night changes because of the planet's rotation, and the changing seasons are related to the movement of the sun's zenith."
Lynn extended his hand, using a few water spheres to simulate the orbits of celestial bodies, providing a unique astronomy lesson to everyone in the simplest terms.
The wizards in the room listened in fascination, as no theory had ever explained the changes of day and night and the seasons with the movement of the stars so clearly.
The mysterious veil of the world seemed to be suddenly lifted from one corner, revealing only the tip of the iceberg, yet it was enough to make people's minds tremble.
Until Lynn's voice fell, the hall of the symposium remained eerily silent. Everyone was immersed in contemplation of the planetary motion laws.
The wordless silence lasted for several minutes, and as more and more people woke up, the hall of the symposium was filled with thunderous applause. Some even took off their hats and bowed to Lynn. Others shouted in excitement.
"It's truly a fantastic and irrefutable theory." Ogest also applauded and praised.
The intricate and regular celestial diagrams presented by Lynn made Raphael's mind tremble. Countless inspirations surged into his mind. If the symposium hadn't been over yet, he would have eagerly turned his insights into sculpture.
"I knew you could do it, Professor Lynn..." Philip walked up and hugged Lynn, already seeing the Silver Moon Medal beckoning to them.
Lydia, Elok, and others looked at Lynn with admiration and longing in their eyes, while Pierce daydreamed about the day he could present his own magical theory to the audience, just like Professor Lynn, and receive thunderous applause.
But soon their excitement was shattered because Lynn quickly said.
"Lydia, Johnny, Elok, and Pierce, why don't you record the pendulum's movement patterns and the time recorded at each scale? You should also be clear about the length of the steel wire, the weight of the pendulum, and its circumference. Draw its motion curve and calculate the data. That's your homework for today."
"Huh?" Pierce, who had been immersed in fantasy, was immediately brought back to reality, and his face instantly drooped. Why was there still homework when they had come all the way to Greenville?
"Did you all take notes?" Elok quickly looked at the two witches beside her.
Lydia shook her head, too busy staring at the pendulum's trajectory, feeling a bit dizzy.
"I've already recorded it. The length of the steel wire is sixty meters, the weight of the pendulum is thirty kilograms, and the time it takes to deflect one scale is five minutes and three seconds, and the swinging period is..." Johnny blurted out the data she had recorded.
Elok and the others looked at Johnny, touched and almost on the verge of tears.
You're our savior.
Compared to Lynn, who had become the absolute focus of the audience, the divinations' witches all had a deathly expression. They had spent over a hundred years observing the laws of celestial motion and had expended countless efforts to depict a perfect star map.
Now someone was telling them that this star map was wrong, and all their efforts were in vain. They weren't even standing on a continent; they were on a rotating sphere.
Under such a massive blow, the divination witches were almost on the verge of collapse, and for a moment, it seemed as if the whole world was about to collapse.
"Cheer up, we haven't lost yet. This pendulum experiment only proves that there is a unique force affecting the pendulum's motion," a divination witch stood up, speaking with determination.
"But besides the Coriolis force, what else can affect the pendulum's motion?" Yulande was almost desperate, after all, the massive pendulum was right there, and Lynn hadn't applied any magic to it.
"Have you all forgotten? Lord Harof is currently studying a theory of gravity, using the star data we provided. If there's a force that can influence it, I guess it must be gravity." the witch said loudly.
Upon hearing this, Yulande and the other divination witches immediately regained some confidence.
Yes, if their research was wrong, how could the legendary wizard Lord Harof discover the mysteries of gravity from these stellar data?
Could it be that even the legendary wizard couldn't see these errors?
Yulande knew that Lord Harof's research had reached a critical moment, a moment that could change the entire magical theory of the wizarding world.
After all, this involved the mysteries of spatial and temporal magic.
Just as Yulande and the others were pondering, the magic symposium's doors suddenly burst open.
No, it's not quite right to say they were "burst open." To ensure that the symposium proceeded undisturbed, the doors had been locked.
But now, with a loud bang, the doors on both sides fell to the ground.