The man who has traveled through time and space for a long time is so scary

Ling Wuxin and his team returned with the black charcoal stone. It was dinner time, and every household was busy cooking. From a distance, smoke rose from every house, a scene of a peaceful home. Home is where people who have just returned from duty can feel at ease! Ling Wuxin was in this state of mind. After entering the village, he went straight back to the hot spring valley without stopping. He asked the guards to unload the black charcoal stone and then let them go back.

Yiyi was watching Xinxin Niannian in the house and playing with them, while Xiaoba was stewing hot pot soup in the restaurant. They all heard the movement in the yard, "Is my husband back?" Yiyi looked outside and asked.

"Yes, big brother is back!" Xiao Ba responded loudly in the restaurant.

"Oh, Daddy is home, Xinxin Nianxian! Let's go and welcome Daddy!" Yiyi turned around and walked out of the room with one hand and one baby on her hip. The two little guys, Xinxin Nianxian, held Yiyi's arms tightly with their hands. They were really afraid that they would fall down because of their unreliable mother.

"Daddy, hold me, Third Daddy, hold me!" Ling Wuxin, who had just stepped into the room, and Xiao Ba, who was turning around to take a look, spoke at the same time.

In the blink of an eye, Xinxinniannian fell into the powerful arms of their fathers. The two little ones couldn't help giggling as they put their heads intimately in their fathers' broad arms, attracting the loving gazes of the three adults.

"Thank you for your hard work, my husband!" Yiyi looked at Ling Wuxin with curved eyebrows. She was supposed to go home on the same day, but ended up being away for three days. Now that she has finally returned safely, her heart is finally at ease.

"Yes, brother, the food is ready, let's have dinner together!" Xiao Ba also spoke.

"Great! We've gained a lot from this trip. Let's eat and chat for a while!" Ling Wuxin was in a good mood, and it was obvious that everything was going well.

"Brother and wife, you eat first. I'll feed Xinxin and Niannian." Xiao Ba took the small bowl that was specially used by Xinxin and Niannian, poured some broth into it, and also took out a meat bone, intending to let it cool down before removing the meat for them to eat.

They looked at the meat bones in the bowl, then turned their heads to look at the meat in the pot reluctantly, and swallowed their saliva at the same time. They turned their heads this way and that, and after confirming and weighing it over and over again, they finally felt that their father and mother really did not agree with their big fish and meat. Then they sat down obediently, looking at Xiao Ba eagerly, waiting for him to feed them.

"Haha, you can eat it after it cools down a bit! Don't be in a hurry! You can't eat hot tofu in a hurry, and you can't eat hot meat in the same way!" Yiyi was almost amused by the reactions of her son and daughter. They are such smart people, how can they know everything!

"Let's eat! No need to feed the kids first!" Ling Wuxin ordered, and then silently tore toothpick-sized pieces of meat from his bowl and fed them to Xinxin and Niannian to satisfy their cravings. Xinxin and Niannian ate with their little mouths smacking, and after a few bites, they began to stare at their daddy.

"Ah... um!" Xiao Ba tore off a small piece of meat from the bone and fed it to Xinxin and Niannian respectively. After the little guys swallowed it in two or three gulps, they began to stare at their three fathers and waited for them to feed them.

"Hey, my dear Xinxin and Niannian, how come you open your mouths and wait for food like a baby bird? Look what your mother has given you to eat?" Yiyi picked up some mashed vegetable leaves with chopsticks and fed them to the children. She gave it to Xinxin, and Xinxin turned her head to give it to Niannian. She gave it to Niannian, and Niannian turned her head to give it to Xinxin. This gesture of mutual concession made Yiyi laugh and cry, so she had to use her trump card. "One bite of vegetables, one bite of meat. If you don't eat the vegetables, you don't have to eat the meat. Just watch us eat!"

"..." Xin Xinnian was forced to open their mouths. Facing their mother who didn't follow martial ethics, they could only compromise. However, after eating the vegetables, they quickly looked at their father and urged him with cute eyes, "Hurry up and feed him. Look how well behaved your daughter (son) is!"

The whole family had a very happy meal! When they were about 70% full, Ling Wuxin started to talk about his experience.

"You mean the black charcoal that can burn fire? My husband, if I'm not mistaken, it should be coal, raw coal, raw coal that has not been screened and processed. It's energy!" Yiyi was so excited that she almost slammed the table. Wow, now that energy has been found, how far can metallurgy, iron and steel making, and thermal power generation be? ! Oh my god, I'm excited just thinking about it. Compared to Yiyi's excitement, the two men at the scene were calm and unmoved. The only two who were in tune with her were excited and kept moaning, but they couldn't say anything about their thoughts.

Coal, coal, is a fossil formed by organic organisms, mainly plants, undergoing millions of years of changes and precipitation. It is an energy mineral. Speaking of energy, who doesn't know that with energy in hand, the world is mine! Yiyi wanted to get up and share with her sisters, but seeing that it was getting late, she had to give up the idea.

"Husband, I'm full. I want to go to the yard to check on the coal!" Yiyi finished a bowl of soup generously, put down her bowl and chopsticks, and immediately stood up and said.

"Okay! Those bags in the yard!" Ling Wuxin looked at Yiyi's expression, he smiled and nodded in agreement. Xinxin and Niannian both stretched out their chubby hands to their mother and asked for a hug. Now they were not afraid that their mother would throw them down? !

"Okay, okay, let's go see the babies!" But Xiao Ba refused to let her hold two babies at the same time, so Yiyi had to take one and they went to the yard to see the babies together.

It was a black lump. Yiyi picked it up and looked at it and smelled it. It had a muddy smell. "Brother Xu, the raw coal needs to be washed with water to remove impurities and harmful substances and then dried before it can be burned. Otherwise, the smell will be pungent and people will be easily poisoned! It's best not to burn it indoors, as it is easy to get poisoned by toxic gases!" Yiyi said a few words about the precautions for using coal.

"Then what is the use of such a poisonous substance?" All Xiao Ba heard was danger. He felt that this substance was extremely harmful and it was better not to have it.

"No, no, no, it has a greater function. It's energy! Do you understand? The heat generated by its combustion is far beyond that of any firewood. This high-temperature energy can be used for smelting. We need a lot of gold, silver, copper and iron, which need to be obtained through smelting. With coal, we can achieve as high a temperature as we want. Unlike firewood, which starts fire quickly and goes out quickly, it is difficult to achieve continuous high temperature to smelt ore!" Yiyi tried to explain using her only common sense, trying her best to prove the status of coal.

"In that case, it's really a treasure, and it appeared at the right time. Just when my brother wanted to focus on mining and smelting, this coal energy appeared. It's really a great opportunity!" Upon hearing this, Xiao Ba couldn't help but sigh that this coincidence was really wonderful!

"Of course, this is a match made in heaven. We're on the road to success..." Yiyi looked to the future with optimism. She was already thinking about how to ask her sisters for advice tomorrow. After all, these involved mining, sorting, transportation and application, all of which were areas of expertise for outsiders. She really hoped that there would be a coal princess among them who was born in a mining area.