Chapter 193: Three volumes of Heavenly Books, obtaining the coordinates of a masterless world

The 30th year of the Great Yan Calendar.

In this year, various inventions continued to show explosive growth.

Among them, there was one invention...

That played a crucial role in solving the last of the three questions from the gods.

That was the grinding of glass products and the appearance of the magnifying glass!

Someone among the common people discovered that after grinding glass, it could magnify objects.

Depending on the angle of the grinding, the size of the convex lens formed...

Could achieve higher magnification.

After Yan saw this invention by chance.

He very keenly associated it with the last of the three questions from the gods.

In the three questions from the gods.

Boiled water, when drunk, would not cause illness, but river water when drunk...

Was prone to causing diarrhea and various discomforts.

Clearly.

There was a fundamental difference between river water and boiled water.

And because of this...

The difference between river water and boiled water had always been a key focus of research for the Great Yan Research Institute.

But relying on the naked eye.

It was impossible to see the difference between the two.

And the appearance of the magnifying glass.

Provided Yan with another line of thought.

A magnifying glass can magnify objects; could it magnify boiled water and river water?

Thus.

The Great Yan Research Institute began using magnifying glasses to observe river water and boiled water.

At the very beginning.

The magnification of the magnifying glass was too low, and nothing could be seen at all.

Helpless.

Yan could only issue an order for the Research Institute to increase the magnification of the magnifying glasses as soon as possible.

And as the magnification increased...

The observation of river water and boiled water became increasingly clear.

Gradually.

In the river water, Yan actually discovered many tiny, constantly trembling and floating black things!

When he saw this scene, he was startled.

Subsequently.

In the observation of boiled water.

He discovered...

That there were significantly fewer floating black objects in the boiled water.

"Could it be that these things are what make people have diarrhea and get sick?"

Comparing the two phenomena.

Yan muttered: "But what are these black things? Why do they make people sick?"

Research continued.

In the time that followed.

The Great Yan Research Institute continuously increased the magnification of the magnifying glasses.

Finally, they saw the overall appearance of these black floating objects clearly.

They were incredibly ugly, and occasionally there were some small, long, worm-like things.

They looked exactly like the worms that grew in the stomachs of some commoners after they contracted malaria.

At this point.

The last of the three questions from the gods was also solved.

Yan was incredibly excited.

He left the Great Yan Research Institute immediately and headed to the temple.

Kneeling on the prayer mat.

He looked at the statue of the god with a devout expression: "Great and all-knowing god, after four years, Yan has finally answered your three questions..."

Subsequently.

He explained them one by one, recounting the discoveries of universal gravitation, the speed of light and sound, and the black objects in the water.

"My life has limits, but knowledge is boundless; Yan understands this teaching from the god that day even more deeply now."

Yan's expression was complex, filled with emotion.

In these few years.

The development of the Great Yan Kingdom could be described as changing with each passing day.

The appearance of various inventions had changed the lives of the common people, making them increasingly convenient.

And with the in-depth research into the three questions from the gods...

He felt the vastness of knowledge even more.

The more he knew, the more he discovered his own insignificance.

Although the Great Yan Kingdom had already solved the three questions from the gods.

But...

Even now, there were still many things he did not understand.

For example, what exactly is the essence of that force that pulls objects toward the ground?

Why does it come to be?

How powerful is it exactly?

The speed of light is faster than the speed of sound, but how fast is the speed of sound exactly?

And how fast is that speed of light, which can travel dozens of miles in an instant?