After separating from his roommate, Lu Yi came to the CUHK library alone.

I found a book on metal materials from the library management system, recorded the common steel formulas and manufacturing processes on it, and then found a book on chemical materials to write down the molecular formula of rubber.

After reading these contents a few times and writing them down for a while, Lu Yi found a mountain bike structure diagram on the Internet, translated a few words in Italian, and then came to the library lounge area to find a place to sit down and pretend to rest.

"System, go to the parallel world."

is still the same blond and blue-eyed image, and the people around him are not speaking Mandarin, Lu Yi rushed out of the city as soon as he appeared.

"Let's get started."

Running out of Rome City, Lu Yi found a no-man's land, repeated his plan and ideas, and only started to act after making sure that there was no problem.

The air stirred up a current, and a 27-speed mountain bike appeared out of the void, according to the system, it has relatively high authority in this parallel world, as long as the relevant manufacturing process and theoretical knowledge including material technology are given, then it can make the corresponding items through material recombination.

"And the drawings and the bag!"

The mountain bike was reorganized by the system, Lu Yi turned over and got into the car, tried the handbrake and continued.

A large amount of paper emerged from the void and was packaged and hung on the front of the car by Lu Yi.

"Praise God!"

Lu Yi roared, and pressed the bicycle pedal hard to rush towards the city of Rome, the good shock absorption system of the bicycle, and the riding skills that have been exercised in middle school and college for nearly ten years show off the feeling of walking on the flat ground in this rugged mountainous terrain.

"Praise God!"

Lu Yi's expression was very fanatical, like a fanatic, riding a mountain bike like a whirlwind through the city of Rome.

His goal was clear: the church in the city.

The bicycle was adjusted to the highest gear, and the chain creaked, and more and more people were attracted, and even the church members noticed Lu Yi who was riding a bicycle, but no one dared to stop him.

The world's first bicycle was not created until nearly 200 years later, in 1790, and no one knew what a bicycle was at this time of the Middle Ages.

Now these two modern bicycles are speeding up, coupled with Lu Yi's appearance of praising God and fanaticism, so that the people and church members in the city of Rome think that this is a miracle.

In this case, let alone blocking, they all got out of the way and followed feverishly behind.

"Praise God!"

Cha!

After a few minutes of attracting a large number of people and church members, Lu Yi came to the church church in the city.

This is the most glorious building in the city, Lu Yi grabbed the brakes, twisted the body with the help of skill, and drifted on the flat ground in front of the church, and finally stopped smoothly at the door of the church.

"Listen to the oracle!"

Getting out of the car, Lu Yi grabbed a stack of papers from his bag and held it high, the white paper shining with charming brilliance in the sun.

The members of the church who were attracted to gather were stunned, paper was available in the Middle Ages, but such a white and flawless white paper had never been seen before, and the images and words that came out of the paper made them breathe a little fast.

Swish!

Never seen a speeding bicycle, never seen white and flawless paper, all the church members subconsciously performed the highest etiquette to listen to the oracle, and the crowd gathered around was also the first to quiet down and pray to God.

Lu Yi's eyes circled around, whether it was the people, the members of the church, or the bishop who came out of the church, everyone lowered their heads, or the oracle in Lu Yi's hand.

The corners of his mouth hooked a smile, Lu Yi's hand suddenly threw up high, and shouted: "Take the oracle!" ”

Bang la la blah!

Handfuls of paper with patterns and words printed on them were taken out of Lu Yi's bag and thrown high, snowflakes fell in the sky, and all church members and people were feverishly reaching out to take these oracles.

This is......

A church member reached out and grabbed an oracle and was stunned when he saw the pattern and text on it.

There are a few abbreviated patterns and lines of text printed on the white paper, although the glyph of the text on it is a little different from the text used now, but it can still be recognized as the "heliocentric theory" and the explanation of this doctrine.

"The heliocentric doctrine? Isn't this an evil doctrine that is brought up by heresy to deny the great merits of God? ”

The member of the church looked up curiously, trying to find the person who had spread the oracle, only to find that he was long gone.

"Fake! This is not an oracle, this is not an oracle! That's heresy! That's a heretic sent by the devil! ”

Compared with the curiosity of this church member, another church member in the crowd suddenly roared out of control, and wanted to look for Lu Yi with a hideous face, but found that the other party was no longer here.

"Fake! This is the doctrine of the devil, and that man is a heretic sent by the devil! ”

"Hand it over, hand over all these evil papers and burn them in a centralized manner!"

Unable to find Lu Yi, this church member took the sword of the knight next to him, and pointed at the people around him who were watching the contents of the paper with a frantic expression.

In the face of this ecstatic and uncontrollable church member, most of the people put down the paper in their hands, but a few people quietly rolled up the white paper and stuffed it into their clothes.

The bishop was silent, the other members of the church were silent, and everyone was in doubt.

Lu Yi's bicycle appearance is too shocking, this white and flawless white paper is too shocking, with these two things as a backdrop, the heliocentric theory on the paper has to be valued from the bottom of my heart.

Not to mention that in order to make it easier to understand, Lu Yi also drew a few simple star maps of the sun, earth, and moon on it.

Several patterns are used to express the moon's cloudiness, the rotation of the earth, the change of day and night, the tilt of the earth's axis, the change of the earth's four seasons, and the orbit of celestial bodies.

With this pattern, even if you don't know how to read, you can comprehend the knowledge as long as you think flexibly, and then verify the authenticity of these contents from reality.

The strict church and the ignorant and fanatical people are the root cause of the distortions of this era.

But when a large number of people see this oracle, when a large number of church members see this oracle, they all have doubts about the now popular geocentric theory, the heliocentric theory in the oracle will not be able to be concealed, and it is destined to bloom with the light of awakening the world.

When the geocentric theory is overthrown and the heliocentric theory stands on the steps, people's eyes will change from bowing their heads and praying to looking up at the starry sky, looking for other planets in the solar system, discovering the colorful mysteries of light, calculating the laws of motion of the planets, analyzing the laws of motion of forces, and verifying the existence of gravity...... Step by step, and finally create a brilliant scientific civilization.

Lu Yi never thought of overthrowing faith, faith is what human civilization needs, when confused, when suffering, a good faith can often give people strong support.

All he wants is to pull God down from the platform of omnipotence and tell people that the truth is hidden in nature, not in the Bible, and that it is okay to believe, but not to be foolish.