Columbus told people that there was an unknown continent out there.

Magellan tells people how big the world really is.

The East India Company told people how to make money outside.

It would be a lie to say that Lyle is not interested in the outside world at all, but this curiosity is just the mentality of a 'tourist'. It is now the late stage of the Age of Discovery, and those who go to sea have passed on all kinds of overseas experiences, and even if they sail with the ship, they only turn 'hearing is nothing' into 'seeing is believing', and they cannot open up anything new.

Of course, 'no value' does not mean 'no interest', as long as Lyle, who was born with a golden key, as long as he passes his father's level (or asks for consent, or waits for his death), it is also possible to forcibly take 'traveler' as a profession, and write a few best-selling travelogues after a thrilling tour, and it is estimated that some can be sold.

However, perhaps it was because he had seen enough of the overseas world in his previous life, or maybe he was full of doubts in his previous life, Lyle chose a completely different direction of exploration in this life - everything that is close at hand.

"Light, it's such a mysterious thing." The closest thing to the eye is 'light', and although Lyle is doing lens imaging experiments with the theme of 'lenses', it is still the phenomenon of 'light discounting' in his bones.

"It's amazing...... Can different shapes of glass have different effects? The maid Ah Xiu, who was watching the whole time, couldn't help but say.

"Lenses of different shapes will work in different situations, and this is the value of natural science." Lyell flipped through his experimental records, pointed to a page of illustrations, and said, "By the way, measuring data through tools, and then changing a certain experimental condition to obtain comparative data, this is one of the basic methods of experiments. ”

"No wonder young master, you came back with so many lenses." Ah Xiu suddenly realized.

There was a knock at the door.

"What's wrong?" Lyle asked as he left the lab table and turned around.

"Young master, the chemical potion you ordered has arrived, and the quantity is a bit large, where do you want to put it?" The maid Ali asked outside the door.

"Oh, just move in, there's still a place in the room anyway." It's small compared to the master room, but this original guest room is designed to be big enough to greet guests, so it's not too rude to be practically rude, and it's no problem to put some miscellaneous items.

"Yes."

The maid, Ah Xiu, would not let her colleagues do the heavy work alone, and after obtaining Lyle's permission, she also went out to help carry the chemicals.

"It's a bit much...... Is it? Lyle walked to the window, opened the curtains that had been drawn for the lens imaging experiment, opened the window, and let the fresh air from outside pour into the room, "Maybe there are some reagents in it, I don't even know what they are, it's really exciting~"

"Well, that's just the artisan left – hopefully they'll get the results sooner, or I'll have to imagine for them how to improve the process of grinding the curved lenses."

However, this time Lyle really underestimated others.

What people lack is motivation, not talent.

》》》》》》》

In the primitive era, the predecessors had little experience, and learning to make stone tools, hunting, picking wild fruits, and fishing can be counted as a teacher.

There was not a lot of experience in the Three Kingdoms era, but the phenomenon of self-cherishing was serious and the education promotion was weak.

However, in this era, with the fruitful academic achievements of our predecessors, the alleviation of the phenomenon of self-cherishment, and the strengthening of education and promotion, in addition to the material conditions of tuition, the biggest obstacle to learning has become talent. Due to the limitation of talent, some people work to earn a living after completing basic education, some people choose to study in a certain subject, and some people choose to study a certain topic, and no one will jump out and shout "I want to study all subjects at the same time and study all topics at the same time".

Lyle couldn't do that, and he wasn't arrogant enough to think he could.

But perhaps it was the nature of the soul itself, or perhaps it was the blessed effect of the reincarnated god, who was an oversized genius who did have ideas on multiple topics in multiple disciplines at the same time.

Microscopes, is one of them.

Decades ago, someone discovered the mystery of the lens, and made the first microscope by superimposing multiple lenses, but because of the magnification of the lens, this microscope can only be used to observe small insects, also known as 'flea lens'; and a few years ago, someone made a microscope with adjustable focal length, because of the complex structure and magnification problems, it was disposed of as a work of art.

Lyell did not invent a new tool this time, but stood on the shoulders of his predecessors, improved the structure of the microscope into a "compound microscope with adjustable focal length", and then spent money on craftsmen to find a way to polish a small-sized high-magnification convex lens. However, the method of using a microscope to observe tiny things that cannot be detected by the naked eye is a new invention that belongs entirely to him.

However, as the inventor of this method, Lyle is not the first user of this method -

"Did you wipe it clean with gauze?" Lyle, who was directing on the side, reminded, "If there is no problem, tear off the inner skin of the onion, put a small piece, put it on the water droplets of the large glass sheet, flatten it and cover it with a small glass sheet, being careful not to leave air bubbles." ”

“…… A small piece...... Don't leave bubbles...... "The maid Ah Xiu carefully tore off the inner epidermis of the onion with tweezers, put the thin colorless epidermis in the water droplets, and then flattened the epidermis with tweezers, and then covered it with small glass pieces with tweezers.

"Drop iodine from one side, use a small piece of paper to absorb water from the other side, suck the iodine wine over, and dye the inner epidermis." Lyle continued to be the commander.

"Suck it up...... Suck it up...... "Ali, the maid at the other end of the experimental table, held the dropper in one hand and the absorbent paper in the other, and completed the operation.

"Okay, I'll leave it to me below~" After the operation that requires technology is completed by the maid, Lyle gnaws the result, puts the glass piece under the objective lens, adjusts the angle of the rear reflective lens, brings the eyes to the eyepiece, and slowly adjusts the focus of the microscope by turning the knob.

Although the craftsman invented a new method to polish high-magnification convex lenses, due to technical limitations, not only did the image come out a little skewed, but the magnification was by no means a regular number, so the function of "adjusting the focal length" was very important.

“……！” After a long time, Lyle finally stopped adjusting.

“？” After waiting for a while and having no answer, Ah Li and Ah Xiu glanced at each other and asked worriedly, "Young Master, haven't you seen anything?" ”

This is actually what everyone is worried about, Lyle's guess is just speculation after all, and according to the current common sense, 'not seeing' is the normal result.

"No, I've seen what I should see, and I'm ready to write a paper......" Lyle still reluctant to leave the microscope, and commanded, "Anyway, I'm suddenly very interested in the little things that make up me, you go find a needle, and I'll put a drop of blood to see." ”