Darkness?
Rafael and the others paused for a moment, and then realized that all the light in the hall had disappeared, leaving only the skylight in the roof that let through a hint of light, casting down onto the stage.
Everyone’s gaze naturally focused together, and Lynn’s figure soon appeared before them, a faint smile on his face. "Ladies and gentlemen, wee to today’s magic seminar."
The hall, already somewhat noisy, immediately became as loud as a festival celebration; a variety ofments could be heard, and some even shouted out loud.
"Lynn, regarding your method of measuring the central angle of the Earth’s core, there are a few points I still don’t understand, and what exactly do ’cube,’ ’square’ and ’root’ mean?"
"What exactly is the radius and volume of the beneath our feet? Is it eight hundred and sixty billion cubic kilometers or one trillion two hundred and thirty billion cubic kilometers?"
"Wizard Lynn, when you previously talked about weighing the, did you use some special magic? Or is it the same divisional method as used in measuring circumference?"
A variety of questions came one after another; aside from those wizards who were curious about the method of weighing, some wanted to confirm whether the numbers they had calcted were correct.
Although math isn’t too difficult for a wizard with a good brain, the proficiency of each wizard is different. Furthermore, the various data points of a are so enormous that a slight error in the calction process can lead to a vastly different result.
So, after two days of fermenting, thousands of wizards managed to calcte several different answers, and to argue about right and wrong, they almost came to blows on the spot.
"Silence... Silence! Now is not the time for questions!" the grand wizard hosting the seminar banged on the table, irritable, finally making the increasingly loud discussion halt for a moment.
Only then did Lynn speak. "Regarding these questions of yours, let me answer them one by one."
"First of all, the beneath our feet has a radius of approximately six thousand eight hundred and seventy-five kilometers, and a volume of one trillion three hundred and sixty-one billion four hundred million cubic kilometers. By using the circumference form to calcte backwards, the radius is equal to the circumference divided by twice the value of pi, and the volume can be directly calcted by substituting the radius into the form..."
Lynn patiently exined the radius, volume, and the corresponding mathematical forms and derivation processes, as all these data were necessary for the uing experiments.
Those wizards who had precisely calcted the data naturally felt smug and satisfied, whereas those who had miscalcted appeared embarrassed, and some who didn’t agree even began to recheck the calctions on the spot.
However, there were also quite a few wizards like Luo’er in the audience, those with average mathematical skills, who quietlymitted these data to memory.
You see, in recent times, the topics ofs and ster orbits have been the hottest subjects in Greenidyre, such that they inevitablye up in any gathering of wizards and have be quite the trend.
"As for the weight of the beneath our feet and the method of measuring it, what is it? I think before we truly unravel this, there is one important question we need to answer!" Lynn’s expression became serious as he looked towards the wizards in the seminar hall and suddenly asked.
"What do you think is the nature of gravity? Or rather, what factors do you believe determine the weight of an object when being weighed?"
Lynn’s question immediately stumped the wizards present; it seemed simple yet was puzzling, even somewhat inexplicable. It was like asking them why water was called water and not earth!
Of course, the weight of something is measured using a bnce scale and weights, and the wizards at the Alchemy Association even created magic scales that can measure an object’s weight very urately.
"What you are trying to say is that the gravity we feel is the gravitational force possessed by the itself, right? So, is it because of the influence of gravity that we can measure an object’s weight?" After pondering for a long while, a grand wizard in front of the stage responded.
"Yes, but also no!" Lynn nodded, then shook his head. "Gravity is aponent force of universal gravitation; it is not always a constant value. Even on the same, the gravity felt in different ces varies…"
"In general, the closer you are to the, the greater the effect of universal gravitation, and the further away, the lesser the effect. Once you enter the boundless cosmos, the concept of weight ceases to exist!" Lynn exined.
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"So you’re saying that in a ce without gravity, everything is weightless?" A female wizard in the front row couldn’t help but stand up. "This… is unbelievable!"
Although the concept of gravity had been put forth long ago, and its rtionship with gravity almost equaled through the trials of freefall experiments, the idea that the weight of an object could change with the strength of gravity, and even disappear, was still far beyond everyone’s imagination.
This was truly challenging their worldviews!
Shortly, another wizard stood up and countered, "Excuse me, Wizard Lynn, but I cannot agree with this concept. Wouldn’t that mean, whether it’s soil or gold, silver, copper, iron, once they leave the influence of gravity, they would all be indistinguishable, and be lighter than feathers?"
"They are certainly different because they have different masses! And the weight we feel is actually the product of the object’s mass and gravitational eleration!" Lynn said with ease.
"Mass, what is that?" the female wizard who had just stood up looked puzzled.
"You can understand it as the total amount of elements contained within an object!" Lynn stated as sinctly as possible. "It is the most fundamental property inherent to the material itself, and does not change with the external temperature, pressure, speed… Whether ced on a or in the universe, the value remains the same!"
The discussion in the hall intensified, this time about Lynn’s new concept of using mass to rece weight.
Everything in the world isposed of elements; in Wizard Land, this ismon knowledge. Therefore, Lynn’s words were not too hard toprehend.
However, what he said next stunned everyone present.
"Furthermore, in my view, gravity may not even exist!" Lynn, not caring whether these wizards could ept it or not, opened with a bombshell!
The seminar hall instantly erupted, with thousands of wizards standing up in disbelief, staring at Lynn—he was actually denying the existence of gravity!
How could he dare?!