After Travis finished speaking, Lorrell said, "We are now doing an oil droplet experiment to measure the quality of the electrons. ”

They had previously determined the charge-to-mass ratio, the ratio of charge to mass, not the mass of the electron.

By injecting oil droplets into an electric field, gravity and electricity are balanced so that the oil droplets are suspended between two metal electrodes. According to the known electric field strength, the total charge of the whole oil droplet can be calculated, and then the least common factor can be solved to obtain the charge of the electron, and finally the mass of the electron can be obtained through the charge-to-mass ratio.

This is a classic experiment that I learned in middle school.

In addition to this, they are also collaborating on X-ray research, and they are also interested in X-ray penetration.

"Teacher, if we analyze this X-ray, will we be able to construct a spell for perspective?"

As soon as his words came out, he was glared at by Travis on the side, and took a few steps back with a look of disgust.

Jia Yi smiled and said, "Of course you can, this kind of spell is very useful for reconnaissance, especially the X-ray penetration ability is very powerful, even after cover, you can see clearly." ”

He looked at Travis again: "You don't have to worry about any bad uses of this spell, whoever shines on it is a skeleton, there is nothing to worry about, you can also find a way to resist this kind of perspective." X-rays can be very harmful to the body, and this way can also reduce the damage to the body when using X-rays. ”

Travis pursed her lips, as a woman, she naturally didn't have a good impression of perspective and the like, she said: "X-rays now require the use of photosensitive potion, if this potion is improved, can it be used to reflect the image of the human body? ”

Jia Yi couldn't help but curl the corners of his mouth and said, "This is a good idea, although the mage has a Lingering Stone and a Lingering Technique, but both of these methods require a mage to perform, and the price is also very expensive, if you can supplement and improve this method of image retention, it will definitely make a difference." At least it can sustain your daily consumption after you become a white-robed mage. However, it is desirable that this method minimizes the reliance on magic and needs to be easy to use, so that it can be popularized. ”

Spell props such as the Lingering Stone can store 36D images, which are of course much more powerful than simple portraits, perhaps because of the existence of photographic spells, so that photography has not developed, although there have long been photosensitive potions, and even primitive photographic methods. However, the capacity of this photograph stone is average, and the price is not expensive, and there is still great potential for the development of photography.

For most people, even if they get a photo stone, they won't use it, unlike a photo, which can be framed directly in the frame.

Travis's eyes lit up, although she was not short of money now, and she had a small amount of savings when she worked in a paper mill when she was in the academy, but as a mage, there was always not much money. And it's nice to have an invention.

"Thank you, teacher, I'll try it when I go back. ”

After a few more conversations, he pointed out the difficulties they encountered in their research, and also pointed out their spells and alchemy levels.

When it was over, Betty asked, "Teacher, did you see a particularly bright star last night?"

Jia Yi grinned and raised his eyebrows: "You also saw it?"

Betty and Winnie nodded, and Sancochia said, "I've heard it too, it's been spread everywhere, and I've heard that those prophetic mages are going crazy, even though they're crazy in the first place. ”

"That's the star of the High Council, the star that belongs only to our mages. ”

Several students looked at each other, not knowing what Jia Yi meant. It is still a short time, and the specific news has not yet spread, and it is estimated that it will not be long before the newspapers should report it, and the Supreme Council has no intention of concealing this matter.

Jia Yi suddenly had a bad taste, and he didn't say anything to them, but just left a sentence: "You'll know after a while." ”

This tone is like an old father saying "You'll know when you grow up".

......

Betty and the others didn't have to wait long, only in the evening, the newspaper had already published all the causes and consequences, Sanko and the others took the lead in running to Jiayi's office, waving the newspaper and saying:

"Teacher, is this true? Lord Isaac made a star in the sky?"

Jia Yi said calmly: "Of course it's true, if you were lucky enough to adjust the radio to the right channel last night, you would be able to listen to the radio from outside the sky, a piano concerto." ”

Sankochia looked remorseful: "Ah, why didn't the Supreme Council notify us, we missed this great moment." ”

"Is that star still there?" Betty looked full of curiosity, the newspaper did not say that the star had been destroyed by the Holy See, only that the intended mission had been completed, and many people did not know that the star had been completely erased by the Holy See's patriarch with great prophecy.

Jia Yi did not hide it, and said, "The Holy See and the elves did not want to see a star made by a mage and destroyed it. ”

"Huh?" several students were surprised, but they didn't expect to miss it for a while and never see each other again.

Sankochia said, "Isn't it good that the elves have a good relationship with the council after they were destroyed? ”

Travis said disdainfully: "The elves are not good people, they believe in the elven gods, although they have a general relationship with the Holy See, but in the maintenance of the authority of the gods, they are consistent with the Holy See." ”

Travis saw this clearly, and did not think that the elves were definitely friends because of the good relationship between the elves and the council.

"Yes, you will definitely travel by yourself in the future, you must keep an eye on it, no matter who you are, you can't be unreserved, the major races and empires on the continent have their own beliefs and taboos, and you probably don't know when you will commit taboos. ”

Faith does not mean believing in religion, that is called religious belief, and belief in GCZY is also a kind of faith, without this belief, New China would not be able to be established in the blue wisps of the road.

"Will the Council build its own star again?" asked Lorrell.

"It should be, the Holy See and the elves can't stop it all the time, and next time it may not be a simple star, I hope to be able to build a base in outer space, and if I don't deal with anyone at that time, I will throw a metal ball in the sky. If you have learned the conversion of potential energy and kinetic energy, you can calculate it. How much energy will be generated when a one-ton metal ball falls. ”

If such a metal ball is wear-resistant and heat-resistant enough not to burn off most of its mass in the air, the power of falling will not be less than that of the forbidden spell.

The outer space base can not only be used as a deterrent force, but also for magical research, and the magnetic field of the planet Gaia under your feet filters most of the natural particles, and if you study it in outer space, you will definitely be able to discover more basic particles. With an outer space base, you can even build a spaceship in outer space and truly travel in space.

The Supreme Council's release of a satellite in outer space caused even more sensation than Kayi had imagined, especially after the broadcast, which caused a wider discussion around Moshacher.

Even the four major magazines couldn't help but reprint this matter, and as the newspaper was transported to other places, it spread among all intelligent races, making more people in awe of the great power of the mage, and the major empires and nobles became more and more afraid of the existence of the mage. However, compared to the Holy See, they still felt that the mage was much more pleasing to the eye, at least the emperor did not need to be canonized.

The elves and the Holy See would have introduced Moshacher's newspaper, although it was not an official channel, but this issue of the newspaper was strictly banned, and only a small part circulated at the top of the hierarchy.

But in many cases, the more people are interested, the official ban is just for more people to circulate secretly, and more and more people know about the satellite, and the Holy See even causes riots because of it.

Thousands of years have passed, no miracles have befallen again, and the faith of ordinary people is becoming more and more susceptible to wavering, although the church and the council know that there are indeed gods, but now it is almost the same as none.

The imam had to hold on to his seriously injured body and personally order that all newspapers not circulated by the Holy See be outlawed, and that he would crack down on privately circulated newspapers before the matter was temporarily suppressed, but the spark had already begun to spread.