Alien Knights

Karin's arrival made Todd a little overwhelmed.

First, he really didn't know how to arrange the girl's shelter and food; second, he also vaguely felt that the other party's running away from home might be related to yesterday's conversation, and he should bear some responsibility to some extent.

The girl didn't pay too much attention to his thoughts. After walking around the monastery, she immediately planned to use a mass room next to the underground hall as a temporary residence.

After seeing it, Todd immediately expressed his objection.

Leaving aside whether it was appropriate for a young girl in bloom to live under the tomb, the darkness, dampness and stuffiness of the room alone gave him enough reasons to find another place for her.

After that, Todd planned to let Karin live in the village at the foot of the mountain, so that the distance was not far and it was not conspicuous. But the other party asked him to live near the laboratory, which made him extremely confused.

In the end, Todd came up with a compromise.

He managed to find several sets of monk's robes, and asked Karin to disguise herself as a monk so that she could move freely.

Then, Todd took a fancy to the attic where the scriptures were stored in the monastery library, and planned to secretly make a room on it as the girl's bedroom.

Ignoring Huggins' belly laugh when he learned the idea, Todd, with the help of several people, finally helped her move the house in the middle of the night without any danger.

In the days that followed, Todd's underground experiment no longer worked alone. A pleasing but naughty female assistant was added to his side.

Whether in the previous life or in the present life, Todd felt that the teaching interaction between teachers and students was so difficult for the first time. It is undoubtedly a difficult and long journey for a person whose life lags behind thousands of years to understand cross-age technology.

"You mean, our world is made up of tiny particles?"

"Karin, the word I use is molecule."

"Okay, sub..., what a strange word."

Todd fiddled with the flask in hand and said without looking back: "In addition to molecules, there are also atoms. Molecules can form matter; atoms can form molecules, and they can directly form matter."

The girl scooped up the powder in the jar with a measuring spoon, and asked, "Then when we make a microscope, will we be able to see molecules and atoms?"

Todd laughed. "No, you can't. We made an optical microscope. To see molecules and atoms, you have to use an electron microscope."

"Then why don't we just make electron microscopes?"

"Uh...no...it's not a question of not wanting to make it, but...we can't make it, and we have to solve the problem of electricity first...Hey, Karin, forget about the molecules and atoms I said, maybe we should take a closer look. After making this microscope, I can let you see some small animals that are invisible to the naked eye, such as cells or whipworms."

The girl was obviously dissatisfied with this perfunctory statement, she pursed her mouth, and angrily hit the powder in the bowl with a grinding stick.

Seeing her performance, Todd could only sigh heavily.

After being busy for eleven days, I tried hundreds of times of raw material purification, material ratio, mixed firing, decontamination and floating impurities, and experienced countless failures. Todd finally identified the best optical glass manufacturing process.

The first step is the most basic ratio of glass raw materials, adding soda ash, limestone, quartz and other materials according to the ratio.

In the second step, boron oxide is added to increase heat resistance and chemical stability, lower the melting temperature of the glass, and resist corrosion by sodium vapor.

In the third step, a small amount of silver chloride is added to increase the optical sensitivity of the boride glass.

In the fourth step, a very small amount of copper oxide is added as a sensitizer to adjust the optical reaction speed of the glass.

The fifth step is melting. The prepared raw materials are heated at high temperature to form a uniform glass liquid without bubbles.

The sixth step is forming. Pour the glass solution into the pre-prepared mold and wait for it to solidify and form.

The seventh step is annealing, which slowly cools the gradually solidified glass to room temperature.

The last step is also the most difficult one. Grind the lens. The surface of the lens is carefully polished with natural corundum to ensure the light-gathering ability and imaging accuracy of the lens.

Since there is no professional optometry instrument and light-sensing equipment, Todd can only use the most primitive direct light measurement method to manually polish the lens. Due to the problem of low proficiency and matching, it took him five days to polish a barely usable product.

The eyepieces are only 5x and 10x, and the objective lenses are only 10x and 40x. This number is still measured manually, and there is still a huge error.

The condenser had to be replaced by copper because it was too late to make a mirror.

Without a lathe (actually because he doesn't understand mechanics), he can't make mechanical knobs, so he uses card slots to adjust the height.

The observation deck is a simple wooden shelf.

When Todd made this extremely crude and ugly microscope by himself, his first thought was not to cheer, but to smash it and redo it. It took him a lot of effort to restrain the impulse in his heart.

Not only was Karin not the slightest bit dissatisfied with this device that took so much painstaking effort to manufacture, but when she put her hair on the observation platform, the girl immediately felt that it was the greatest invention in the world.

Todd made a microscope, of course, not as simple as looking at hair.

He took a hand blood sample from Huggins, a leg biopsy sample from Edgar, and adjusted the magnification to 400 times. Finally, he was able to see the real source of the two people's heterogeneous abilities—bacteria.

Originally, he also planned to try to discuss with Karin to extract her body fluid for testing, but the other party's disgusted expression when he heard the word sampling made him immediately dismiss this idea.

Put Huggins and Edgar's sample into a glass slide, and then adjust the eyepiece, objective lens and viewing distance.

Due to the limitation of the magnification effect, the bacteria under the microscope are only the size of a needle tip, and the specific shape and structure cannot be observed at all, so the intracellular inspection and alienation test of bacteria cannot be carried out at all.

Temporarily giving up the study of the bacteria in the two, Todd then turned his attention to himself—the Sutherland relic.

After testing his own blood, Todd finally found two completely different bacteria in his lacrimal gland secretion and tooth nerve.

Bacteria in the lacrimal gland are more active in movement, more stable in division, faster in iteration speed, and larger in number. They mainly exist in the retina and lens. He infers that this may be the source of the ability to see through objects.

The spherical bacteria in the nerves are very strange. They are very small in number, and only a few can be seen occasionally under the microscope. They are resistant to high temperatures and are thermophilic. Even if they are exposed to an acid-base environment for a long time, they will not damage the cell structure. This bacterial body is very similar to the Archaea (Domain-Archaea) in the previous life, except that it does not seem to be able to reproduce and divide.

There should be no mistake, the spherical bacteria in the nervous system are the true face of Sutherland's relic.

But a new problem came again.

1. The bacteria in the eyeballs have brought them the ability of "seeing through", so what is the role of the Sutherland archaea?

2. If the Sutherland archaea was infected by itself in the cellar, when did the "see-through" bacteria in the eyeball enter the body?

Unexpectedly, these two mysteries were completely solved in the next experimental accident.