Song Dynasty: Yuan Dynasty, you didn't expect this, did you? I'm still alive.

The fourteenth year of Cheng'an (1412).

Zhao Xi's ten-year plan—only three years left.

The Gewu Academy, the pile of electricity left by True Lord Fuda, the perception attained by True Lord Faxiao, the electric potential deduced by True Lord Oumu... the legacy of the three True Lords of the previous generation is scattered like stars in the sky, each shining brightly, but no one can see the undercurrents beneath the starry sky.

Master Maiwei emerged out of nowhere, using elegant and precise mathematical language to summarize the experimental results of his predecessors and his own ingenious ideas into four concise equations.

The Maiwei equations systematically explain the fundamental laws of electromagnetic fields, unifying electricity and magnetism.

That is, a changing electric field generates a changing magnetic field, and a changing magnetic field generates a changing electric field. This alternating excitation process propagates through space at a finite speed, like water waves, forming electromagnetic waves.

He calculated that the speed at which this wave propagated in a vacuum was very close to the speed of light known at the time, and thus boldly asserted that light itself was also an electromagnetic wave.

Optics, an ancient discipline that has always been separate from thunder magic, is now incorporated into the electromagnetic path.

He was the fourth person in the Eastern Song Dynasty to attain enlightenment, following Fu Da, Fa Xiao, and Ou Mu.

The Taoist name was jointly determined by the imperial court and the academy, inscribed in the imperial genealogy, and would be worshipped for generations to come.

His title is: Electromagnetic Light Harmony Cave Microscopic Mystery Harmony Maiwei Tongxuan True Lord.

"Electromagnetic-optical combination" summarizes its function of unifying the three paths of electricity, magnetism, and light; "penetrating the subtle and mysterious" refers to its ability to see through the profound mysteries of the Great Dao and integrate all methods into one; "penetrating the profound" is an honorific suffix that means "understanding the profound mysteries".

The four laws he summarized had a profound impact, and his prediction of the existence of electromagnetic waves ushered in the era of radio communication. Later, from broadcasting, television, and Wi-Fi to mobile communication, the theoretical source of all wireless communication technologies pointed to the Maiwei equations.

In Taoism, his status is second only to the Holy Ancestor Zhao Shi and the Quasi-Sage Guo Yun, who discovered two other laws: universal gravitation and the Great Dao of Force.

Of course, some people in later generations believed that his cultivation had reached the Great Perfection of True Monarch, and he was half a step into Quasi-Saint.

These four principles form a framework of thought that supports the technological dome of modern society.

Along with Guo Yun's classical mechanics and the theory of another great thinker in later generations, it is known as one of the three great milestones in the history of Daoist studies, together shaping the Song people's fundamental understanding of the material world.

. . .

The fifteenth year of Cheng'an (1413).

Zhao Xi's ten-year plan—only two years left.

Zhu Di personally led yet another military campaign.

After realizing that going against the Song Dynasty was just asking for trouble, Emperor Yongle came to a conclusion: Feeling down? Go fight the Mongols.

The national treasury is empty? Fight the Mongols.

Need to boost his political achievements? Invade Mongolia.

Mongolia was Zhu Di's personal punching bag and experience pack.

This time it was the Oirat's turn to be unlucky.

The Oirat forces were formidable: led by Daliba Khan, with Mahmud, Taiping, and Batu Boluo as their support, 30,000 cavalrymen arrayed on the hilltop, each carrying three spare horses—a total of nearly 100,000 horses, making for a truly spectacular sight.

The Oirat people, occupying the high ground and looking down from above, thought they had it all figured out.

With the Ming army at the foot of the mountain, facing an uphill disadvantage, the Oirat general was already planning how to divide the spoils after the battle.

Zhu Di thought to himself: Have you bunch of bumpkins ever seen what cannons are?

Having witnessed the cannons of the Song Dynasty, Zhu Di became even more interested in firearms.

The Ming army sent a small force to provoke them, and the Oirat cavalry charged down the hillside with a roar, their momentum unstoppable.

Then the Ming army's guns and cannons fired.

It wasn't just one or two shots; it was a volley of fire so dense it could plow a line of fire across the ground.

The Oirat cavalry charged halfway before realizing that their arrows couldn't even reach the Ming soldiers, while the Ming soldiers' lead bullets were already smearing their faces.

The Mongol cavalry were dumbfounded.

Wait, this isn't what we agreed on?

The Oirat army retreated sheepishly to the mountaintop, where they fell into deep thought.

The Ming army began to advance up the mountain from the east and west flanks, with casualties on both sides.

In the end, Zhu Di personally selected several hundred elite cavalry as the vanguard, and with muskets firing, the cavalry pressed forward.

The Oirat defense line collapsed on the spot, and Daliba Khan, along with his three kings, fled for their lives, running all the way to the Tula River before daring to stop and catch their breath.

The prince and more than ten others were killed in action, and thousands were annihilated. The formidable force of 30,000 cavalrymen vanished in an instant.

When Arughtai received the news of the victory, he was probably drinking tea in his tent.

After reading the battle report, he silently put down his teacup and said to those around him, "Prepare the horses and head to the capital. Pay tribute."

His attitude was extremely upright.

The following year, the Oirat envoy slunk to the capital to apologize, and the tributary relationship was restored to normal.

At this point, the Yongle Emperor's grassland dungeon has been cleared again, and the achievement "I can't beat the Song Dynasty, but I can't beat you" has been achieved.

. . .

The sixteenth year of Cheng'an (1414).

Zhao Xi's ten-year plan—only one year left.

Pan Kexin of Gewu Academy improved upon the previously invented plastic, enabling its commercial mass production and bringing plastic into the civilian consumer market for the first time.

Pan Kexin's persistent dedication to plastics stems from the Taoist concept of the unity of heaven and humanity.

While luxuries like ivory and tortoiseshell are desirable, each one represents the death of an animal.

Pan Kexin did not want this to happen; the plastic he invented was seen as a material for "saving nature."

This idea piqued the interest of Crown Prince Zhao Chang.

Ever since the prince was saved by Gugu Gaga, he has been going to his grandfather's animal park every few days. He believes that animals, like people, have feelings.

In no time, the two became inseparable friends.

Crown Prince Zhao Chang vowed in his heart that if he ascended the throne, he would implement a law to prohibit the hunting of certain endangered animals.

Furthermore, animals are classified into several levels according to their rarity.

The highest level is naturally Gugu Gaga, after all, she saved Zhao Chang's life.

Zhao Chang decided to include penguins in the royal symbol corps, on par with dragons and phoenixes.

As for the evil seals that like to bully penguins, they are naturally considered the lowest of the low.

Of course, this idea was opposed by Pan Kexin, who believed that excessive human intervention would cause side effects.

Although Zhao Chang was disappointed, he humbly accepted Pan Kexin's advice.

same year.

Siemens improved upon the self-excited DC generator to produce the first commercial DC generator, thus industrializing electricity production and officially ushering in the electrical age.

From then on, electricity began to be freed from expensive chemical batteries (such as the voltaic pile), ushering in the Second Industrial Revolution marked by electricity.

Upon hearing this news, the factory owners, who had long been eager to acquire Siemens, quickly treated it as an honored guest.

Generators and motors are physically identical; the only difference lies in the direction of energy flow: when mechanical energy (rotation) is input and electrical energy is obtained, it becomes a generator; when electrical energy is input and the rotor rotates to output mechanical energy, it becomes a motor.

Anyone who has studied the electromagnetic path knows this.

This means that, in addition to the steam engine, the Song people possessed a second power machine.

The merchants had not forgotten their titles in Siam. Compared to the Song Dynasty, which was ruled by the scholar-official class, Siam was entirely dominated by merchants.

Whoever has more money holds the power!

It could even change taxes!

Previously, steam engines were regulated, preventing them from setting up factories in Siam and enjoying its low-tax policies.

But now it's different.

A large amount of capital poured into Siam in a short period of time.

The future belongs to capital!

Capital is invincible!