At the same time as the fleet returned, on the capital side, Wang Lang finally produced the world's first electrical appliance and electric light after continuous research and repeated experiments.

With the experience of his predecessors, Wang Lang has taken a lot of detours, and Edison's experience is basically familiar to people who have gone to elementary school.

Wang Lang knows that the best way to make filament is to use tungsten filament, but tungsten is a metal that he has never seen before he came to this world, let alone in this world.

In his memory, Edison was originally made of carbonized bamboo wire to make electric lights, with this idea, he had taken a lot of detours than his predecessors.

Although there is a theoretical foundation, it is not so easy to implement in practice.

Wang Lang didn't know how many times he had failed before he succeeded in making the light bulb light up for a moment.

However, the brightness of this moment made Wang Lang dance excitedly.

This is an epoch-making invention, and he knows that as long as he continues to research, Xia Guo will definitely be able to use electric lights.

In the past few decades, he has made human beings go from drinking blood to using electric lights, and he doesn't know how much effort he has put in.

For others, Xia Guo may be a safe haven, a place to live.

But for Wang Lang, this is his child, starting from scratch, watching it grow and become stronger little by little.

With the first success, the more the experiments are simpler, the most critical points have been solved, and the remaining are technical problems.

In terms of technology, in the past few decades, a large number of manual talents have appeared in Xia Kingdom, and it is not difficult to make practical filaments.

When Wang Lang handed over the task of making filament to the Ministry of Industry, Mu Feng, who was a waiter in the Ministry of Industry, although he didn't know what the use of firing bamboo silk was, but as Wang Lang's confidant minister, he didn't ask much, since His Majesty the Emperor asked for it, the only thing he had to do was to do things well, so as to live up to His Majesty's trust.

With the participation of the Ministry of Industry, various types of bamboo silk were sent to Wang Lang.

After experimenting one by one, Wang Lang finally found the most suitable one.

In Wang Lang's secret laboratory, Wang Lang held a wire with trembling hands.

"God willing, this time it will be successful."

After praying secretly in his heart, Wang Lang turned on the power supply and gently shook the small generator.

As the gears accelerated, the light bulb on the side began to flicker brightly and dimly.

At this time, Wang Lang was very worried, in countless experiments, the filament could only be lit for dozens of seconds before breaking, and the best one could only last for about five or six minutes.

Wang Lang shook the handle intently, looking intently at the flashing light bulbs.

One minute, two minutes, five minutes, ten minutes passed, and the light bulb still shimmered brightly.

Seeing this, Wang Lang's spirit was shocked, although his arm was a little sore, but he didn't seem to feel tired at all.

Another ten minutes passed, and the light was still there.

Half an hour later, when Wang Lang's arm was so tired that he could barely lift it, he stopped the experiment.

"Half an hour, half an hour of light, I succeeded, finally succeeded."

Wang Lang sat on the ground, crying and laughing like a child, trembling with excitement.

Under this unstable voltage, the bulb can continue to light up for half an hour, which means that Wang Lang knows very well in his heart.

If you change it to a stable voltage, it will not be as good as the electric lights of another world, but it will not be a fantasy to illuminate the night.

Half a month after the first electric light appeared, the dragoons hurriedly reported.

When Wang Lang learned the news of the safe return of the expedition, he was in a good mood.

The return of the expedition shows that they have found the Australian continent, and whether there are dinosaur people on that continent or not, Wang Lang must take it down.

The Shenzhou Continent is lonely overseas, and there is only one place for human beings, and he is really not at ease.

If he guessed correctly, this continent, the earth of another world should also exist, why is there no Shenzhou continent in another world.

The only possibility is that the entire continent has sunk to the bottom of the sea.

For the future of mankind, he must strive for more living space for future generations of mankind.

Although the human race is scarce, driven by advanced productive forces, he is confident that he can compete with the other two races, which is the power of science and technology.

Under his own influence, this technological leadership can last for at least a long time, and as long as future generations are not idiots, humanity will not be wiped out by other races.

The success of the electric light and the return of the expedition made Wang Langlong's face happy, and the Ministry of Rites was ready to welcome the return of the expedition with the most solemn etiquette.

The government was preparing for the return of the expedition, and ordinary people understood what was going on after a little inquiry.

The young Xia Guo is in the stage of pioneering and enterprising at this time, and the whole country is showing a spirit of hard work and enterprising.

Ordinary people don't know what it is to be a country's responsibility, but they know that as long as there are new discoveries, then they have many more opportunities to get ahead.

With the abundant products, Xia basically solved the problem of people's food and clothing.

The people who have food in their warehouses and are not panicked in their hearts, want to pursue a better and more comfortable life, and their strong military strength makes Xia Guo in an absolute hegemonic position on the road of Shenzhou, and it is no longer enough to capture savages and open up unknown regions.

And the new continent overseas, going there to venture there will be a great opportunity to leave a name in history.

Young people, since childhood, have heard the stories of the older generation exploring in the wild era, and the characters in those stories have now become heroes praised by everyone.

Those people were destined to be remembered by posterity, and now this opportunity appeared in front of them, and the hot-blooded young people seemed to be beaten with chicken blood, asking around for news of the expedition and the new world.

Many young people joined forces, paid a large amount of money to the shipyard, rented a sea boat, and prepared Yang Fan to go to sea.

Two months later, the capital was lit up with lights, the streets were disturbed by dust, and officials at all levels went out of the city for ten miles to welcome the return of the expedition.

Wang Lang and the dense crowd of officials and people behind him looked forward to the official road in the distance.

In the gorgeous car, Fanxing peeled a fruit and handed it to Wang Lang, and chuckled: "Your Majesty, you have gotten up back and forth many times, the weather is hot, eat and fruit to cool off." ”

"The warriors are not afraid of hardships and dangers, looking for distant lands, compared to them, I am nothing for a while." Wang Lang said in a deep voice.