"Yes, it is said that Lord Isaac was just a formal wizard at that time. After an academic discussion on the movement of stars, he suspected that there must be an invisible force pulling the planets in the galaxy to revolve around the sun. It was not until he walked under the apple tree and was hit by a falling apple that he suddenly realized it..." Lin En explained with a headache.
No one knew what went wrong, but on the way back by airship, Harof suddenly became interested in the fictitious legendary wizards of the [Arcane Society]. As a last resort, Lynn had to tamper with some anecdotes about celebrities in order to fool people.
However, Harov was obviously unaware of this and was immersed in the celebrity stories told by Lynn.
What surprised him the most was that when the legendary wizards of the [Arcane Society] developed many magical theories, they were just apprentices, formal wizards, or even ordinary people who didn't know magic. However, they relied on arcane mathematics, amazing intuition, and extraordinary imagination to discover the truth contained in those sparse and ordinary phenomena.
For example, Isaac discovered the phenomenon of gravity because of a falling apple, and Kepler judged that the planet under his feet was a sphere based on the phenomenon of a lunar eclipse.
Maybe this is genius!
Harof couldn't help but think that it was only after he became a great wizard that his magic power and computing power increased. When he released magic, he caused a certain disturbance in the space and thus discovered the existence of gravity.
Compared with the experiences of those legendary wizards, Harof couldn't help feeling a little ashamed.
But at the same time, Harov also noticed a very important point, that is, Mathematical Olympiad! Whether it is the three laws of the stars mentioned by Lin En, or the law of universal gravitation, or even the measurement of planetary data, they can all be intuitively presented in the form of Mathematical Olympiad.
Many complex explanations have been simplified and can be calculated as long as there is a formula.
Haroff calls it Olympiad thinking!
This is undoubtedly what the wizarding land lacks, and perhaps it is also the reason why the [Society of Mysticism] can make rapid progress in the study of magical scholarship.
Thinking of this, Harof begged Lynn to compile some basic Olympiad mathematics knowledge into a book. He planned to apply to the parliament to make Olympiad mathematics a mainstream subject for various schools of thought to study.
Lin En naturally agreed happily. He had long wanted to unify all the messy operation symbols in the wizarding land, so that he wouldn't have to spend a lot of time figuring out what each symbol represented every time he flipped through the magic book.
The most annoying thing is that sometimes each school of thought uses different operation symbols for the same formula. For example, there are several πs to represent the value of pi, which makes him very confused.
"Since we have calculated all the data of the planet under our feet, can you now tell me what the gravitational constant is?" Harov asked curiously.
There is no doubt that the pendulum experiment and planetary data calculations that Lin En had previously conducted were all preparations for this most important thing!
"Lord Harof, I'm afraid you need to wait a few more days. In order to calculate the gravitational constant, we still lack a very important thing. By then, we can all intuitively 'see' the effects of gravity and the distortion of space." Lin En explained freely.
"Oh?" Harov immediately became interested.
"Is there anything we can do to help?" Harov asked quickly.
"I'm looking for some raw materials for experiments." Lin En gave a general description of the appearance and properties of quartz and feldspar.
The method he used to calculate the gravitational constant was naturally the famous Cavendish torsion balance! To replicate this experiment, you need to use light and several mirrors to reflect the light! After all, the influence of gravity is very weak, and only by using light projection to amplify the slight disturbance twice can the changes be perfectly presented.
Quartz and feldspar are two raw materials for making glass.
Of course, it is not impossible to melt the sand directly at high temperature, but in addition to silicon dioxide, the sand will inevitably contain many impurities, which will affect the quality of the finished product.
In addition, fluxes such as limestone and soda ash are needed. These two things are easy to get. Limestone is everywhere near the Yieta Harbor, and soda ash can be synthesized by yourself.
…
The parliament acted faster than Lynn had imagined. The very next day after he returned to Greenriel City, Harof sent people to transport several tons of quartz sand and feldspar on dozens of camels. They piled them high in front of the temporary residence, attracting a crowd of onlookers.
"Mr. Lin, if the quantity is not enough, I will ask someone to get another batch tomorrow." Korol said in a very respectful tone.
As a disciple of Harof, Korol did not dare to underestimate this young wizard who was becoming famous in the wizarding land, nor did he feel dissatisfied because he was appreciated by Harof. After all, Theresa's fate was a warning.
"That's enough! This is definitely enough!" Lin En looked at the quartz sand and feldspar piled up into two small hills, and the corners of his mouth twitched. With so many raw materials, he could open a glass factory without any problem! After rejecting the other party's kindness to help, Lin En asked Lydia, Darren and other halflings to take some of the raw materials and returned to the house.
The process of making glass is not complicated. It only requires high-temperature dissolution. The melting point of quartz sand is 1750 degrees, but the addition of soda ash and limestone lowers its melting point a lot. It is no problem for Lin En to use magic to create this level of high temperature.
Under the curious gazes of Lydia and others, the decomposed granular quartz sand gradually melted under the effect of fire magic, turning into a red liquid that kept flowing in the palm of the hand, and then placed into the round mold that had been made long ago.
After the glass was completely formed, Lynn put tin foil on one side and finally poured mercury on it.
Mercury is a liquid metal that can dissolve tin and make it stick tightly to the glass plate. When it is completely solidified, a smooth, flawless glass mirror that can clearly reflect a person's shadow appears in front of everyone.
(End of this chapter)