I Made Scientific Magic

Together, Harroff and Lynn pulled the string straight, pressing one end under the icicle and overlapping the shadow at the other end.

When the magic clock reached twelve o'clock, Harov used his hand as a knife to cut off the remaining rope with great precision!

"Scale, bring the scale!" Harov shouted excitedly, because he came down in such a hurry that he even forgot to bring the most important ruler.

With quick eyes and quick hands, Eloque ran back to the airship immediately, and handed the scale to Harov within ten seconds.

The legendary wizard solemnly took over the scale, and began to measure in sections as if on a pilgrimage.

"Master Harov, what is the length of the shadow!" Several accompanying wizards asked with great anticipation.

Harov didn't answer immediately, but measured it several times before speaking in a cautious voice. "It's 1051 centimeters, or 10.51 meters!"

Everyone who got the data immediately took out pens and paper to calculate it. The great wizards who are qualified to watch this experiment in person in an airship, although they have not systematically studied the Olympiad, but the calculation methods of basic geometry are still clear.

However, this value is not a positive integer. In the case of decimals, the calculation amount is multiplied by taking the square root again. It took more than five minutes for everyone to use the Pythagorean theorem to calculate the length of the hypotenuse. Equal to 100.55 meters.

After more than two months of Mathematical Olympiad training, Lydia and Eloke are obviously faster than them. They have already started to measure the angle of the top angle. Substituting it into the triangle formula, the sine sin is equal to the opposite side to the hypotenuse...

"I figured it out, the top angle is six degrees!" Lydia, who was the first to figure it out, waved her arms vigorously and shouted loudly.

Harov, who didn't have a pen and paper, got the answer at the same time only by mental arithmetic - Lydia did not make a mistake, the angle between the top angle of the triangle and the corresponding angle between the center of the earth is exactly six degrees!

The rest is easy to handle. A circle has 360 degrees, and the angle between the center of the earth is equivalent to dividing the whole circle into 60 equal parts. Each part is 720 kilometers, so the total length is...

"Forty-three thousand two hundred kilometers!" Harov's voice was trembling, and he counted in his mind several times in a row, for fear of any omissions, and after confirming that it was accurate, he said like a dream. "Forty-three thousand two hundred kilometers! This is the circumference of the planet under our feet!"

Lynn was naturally the fastest one to calculate. After the intelligence brain got the data of the shadow length, it directly presented the answer in his mind.

It seems that this alien planet is slightly larger than the previous Earth.

If he remembered correctly, the circumference of the earth should be 40,075 kilometers, and the two figures are very close.

The rest of the wizards also quickly calculated this value, and they were all excited. Once they knew the circumference, it was only a matter of time to calculate the diameter, radius, and area.

Luo Er on the side did not participate in the calculation, but created a new picture scroll called "People who measure the circumference of the planet under the scorching sun and ice"!

The ink-stained quill swung quickly across the parchment.

Harov who used a scale to measure the rope, Lynn who stared at the sky as if estimating the angle between the center of the earth, Lydia who jumped high, and the wizards who were deep in thought behind them all jumped out on the paper, in the scorching sun. Against the background of the floating ice island, it has a great sense of impact, forming a weird and harmonious picture.

After scattering his inspiration, Luo Er looked at the two scrolls in his hand and felt that he had no regrets in this life!

Because he is extremely clear that these two scrolls will inevitably be remembered by the world forever along with this historic moment!

However, after sorting out his emotions, Luo Er did not forget another important matter, otherwise some people would be impatient.

Thinking of this, Luo Er looked at Harov and asked. "Master Harrov, do you want to send this news to Greenriel now?"

Harov, who was calculating the surface area of ​​the planet, didn't bother with it at all, and just nodded casually. "Since it's confirmed, let's send it!"

...

At the same time, in Greenriel City, more than a dozen alchemists were standing in front of the communication alchemy formation, anxiously waiting for the message from the other side.

But now it was 12:37, and there was still no news, which made Raphael and others have to start wondering if the operation had failed.

Could it be that Lin En's idea was actually wrong, this continent is not a sphere?

"Look, there's movement!" A sharp-eyed alchemist immediately noticed that the formation was lit up, and everyone immediately joined in.

Since more than 700 kilometers are separated, the consumption of magic stones required to transmit information is also a terrifying figure, so Luo Er only transmitted the two most important data, the shadow length and the top angle.

"The length of the shadow is 10.51 meters, and the top angle is 6 degrees..." Raphael shouted excitedly as he watched the data made of magic power constantly beating in the alchemy circle.

Under the effect of the amplification magic, the news quickly spread throughout the city of Greenriel, and a strange scene appeared in the entire city of wizards. Countless wizards who were looking forward to it took out parchment and The quill began to count, and even many well-educated civilians participated.

If there is only a shadow leader, one must be proficient in trigonometric functions to calculate the data, which is enough to stump most wizards.

But once you know the data of the top corner, it becomes the most basic multiplication and division, even some civilians can calculate it!

"The circumference of the planet is 43,200 kilometers, the diameter is about 1751 kilometers, and the surface area is 594 million square kilometers?" On the crowded streets of Green Riel City, Asia Looking at the data just calculated, Li murmured to himself.

He is not a wizard, or due to limited talent, he does not even have the opportunity to enter a certain magic school as a wizard apprentice, but he has a very strong interest in counting.

Previously, Alex thought that calculations could only be used in daily transactions, and he became a tax official, but the last issue of [Magic Daily] opened the door to a new world for him!

That master wizard named Lynn who came from the sea of ​​mist actually planned to measure the circumference of the planet under their feet, and he didn't need any magic, just a few simple calculation formulas!

Alex didn't believe it would be so easy at first, but when these values ​​really jumped out on the paper, he no longer had any doubts in his heart, and the surging shock could not be calmed down, as if the world was under his pen!