Chapter 74                                                             �

"Son-in-law, you! Are you an immortal?

It can actually make ice cubes out of thin air! I know, the ancients met immortals by chance and learned the art of turning stones into gold, and you learned this ice-making magic!"

Li Shimin looked at Xu Tiandao in shock.

Whether it is folk legends or rumors, there are people who encounter immortals by chance and learn to turn stones into gold. Although there is no sufficient evidence to prove this, the rumored person is indeed making a fortune!

Li Shimin didn't believe these things at first, but now he believes them a little.

Xu Tian first gave the servants present a look, and the servants left tactfully. Xu Tian looked at Li Shimin and smiled: "Haha! Father-in-law, where are there any stones turning into gold and ice making techniques? This is just the simplest chemical reaction!"

"Oh! Chemical reaction?

What is this?

Is it the magic you practiced?"

Li Shimin asked again.

Although Xu Tian said that he did not turn stones into gold, nor did he have an ice-making magic, in Li Shimin's view, this chemical reaction was an ice-making magic.

"Father-in-law, I can't explain to you what the chemical reaction is, but why this water condenses into ice, I can explain to you."

"These stones are saltpeter. If they break saltpeter and put them in water, they will react with the water and quickly release the cold air."

"I let the iron bucket in the water shake to quickly absorb the cold air. In this way, the water in the iron bucket condenses into ice!"

Xu Tian explained.

this……

Li Shimin, Li Jie, Fang Xuanling and Li Chunfeng all opened their mouths wide. They still don’t know much about the chemical reactions and the release of cold air.

However, at least I know that the reason why this water turns into ice is because of saltpeter.

call!

Li Shimin breathed a long sigh, looked at Xu Tian with a serious expression, and said, "Son-in-law, even if this water can condense into ice, it can rebel against us. What help will it help us?"

"Father-in-law, let me ask you, why from ancient times to the present, all countries have to choose after autumn to go to war?"

Xu Tian asked in a deep voice.

kindness!

Xu Tian’s question shocked Li Shimin, Li Jie and Fang Xuanling to the point of being speechless. If it weren’t for Xu Tian’s statement today, they would not realize that wars from ancient times to the present almost all started in the autumn!

Fang Xuanling thought for a moment and said in a deep voice: "Because the autumn harvest of food, the war begins at this time, there is enough food and grass, and there is no worries. I'm right, my son-in-law."

After hearing this, Xu Tian nodded. It seemed that the old house still had some insight.

"Autumn is cooler, and it is not as cold as winter, so it is easier for soldiers to march. Moreover, there are fewer bugs in autumn than in summer, which can reduce the spread of the epidemic."

Li Ji also said.

Xu Tian couldn't help but look at Li Jie with praise. Compared with the food and grass that Lao Fang mentioned, this issue was obviously more critical.

In ancient times, when two countries went to war, they had to go through long-distance marches, mostly through mountains, rivers and hills. During this period, there were many poisonous insects, and one person got sick and it was easy to spread among the army. Before the two armies could fight, most of their combat power would be lost.

This disadvantage will be reduced a lot after autumn. Moreover, the plants and trees stop growing and leaves begin to fall off. It is more convenient to set up camps during the march.

"Haha! Lao Fang, Lao Li is right. There are indeed such benefits in marching in the autumn. However, if there is this ice cube, the soldiers in the army will be one piece for each person, can they march in summer?"

Xu Tian asked with a smile.

hiss!

Xu Tian’s question made the three of them suddenly realize that they couldn’t help but take a breath of air conditioning. If this ice cube could be equipped with the entire army, let alone the summer marching, it would be no problem to travel a hundred miles a day!

Moreover, with ice, soldiers will not have heatstroke, poisonous insects are afraid of the cold, and they will not be close to each other, and soldiers will not be easily sick.

"Son-in-law! What do you mean, can this thing be equipped with the entire army?"

Li Shimin was extremely shocked.

He originally thought that Xu Tian's ice making technique could create ice cubes in summer, and ice cubes are a shortage of goods in summer. Not only are they expensive, but as long as you are willing to sell, someone is willing to buy them.

This is what Xu Tian said to make a big profit, but Xu Tian directly linked the ice cubes to the army. The army of 100,000 people marching for one day, and the ice cubes consumed must be 300,000 kilograms. Can it be produced?

"Of course, we can be equipped with the entire army. Our Tang Dynasty has abundant saltpeter reserves, and no one knows that this thing can be made ice, so the price is low!"

"We only need to buy and hoard large quantities, and use this item to make ice, which can be sold for money, or equipped with the entire army when necessary!"

"At that time, in the summer, our soldiers will march with ice to kill the enemy, but the enemy is so hot that they will have heatstroke. If they don't have one ten combat power, how can they fight us?"

Xu Tian said proudly.

this……

Li Ji and Fang Xuanling were stunned. Although they were both civil and military, they each made achievements in leading troops to fight. Fang Xuanling was more logistics-oriented, while Li Ji was good at battlefield command and adapted to changes!

In the eyes of the two, if the war starts at the hottest time of summer, it is not only about the snakes, insects, rats and ants encountered during the marching, but just about the hot weather can make people heatstroke.

Once you have ice on your side, you can attack the enemy in summer. Once the enemy fights, you don’t need to fight head-on. You only need to pull for one or two hours, and the enemy will basically be abandoned.

The three of them looked at each other, all thankful that Xu Tian was theirs. If they were born in a Turkic or Tubo place, they would probably come to defeat the Tang Dynasty one day!

"Haha! Son-in-law, you can't fight! They can't fight with us!"

Li Shimin said with a smile.

"Haha, son-in-law, since this method of making ice in saltpeter can allow our soldiers to occupy the right time, place, and people, why do we still have to make money?

Why not use it privately by yourself? The master doesn’t lack money anyway.”

Fang Xuanling said with a smile.

In his opinion, if this ice cube is popular, it will be too dangerous, so it is better to take it into his own hands.

Li Shimin also hurriedly said: "A son-in-law, as a father, I am indeed not short of this little money. It is better for us to use this ice cube."

Xu Tian gave Li Shimin a blank look and said, "Father-in-law, you may not be short of money, but if we want to raise an army, we will always want it if we don't say more than one hundred thousand people, right?"

"It's not too much for these 100,000 people to eat three kilograms of food a day?

This day is 300,000 kilograms of grain, and one hundred days, that is 30 million kilograms of grain!"

"Father-in-law, just say, can our 100,000 people conquer the Tang Dynasty?
Chapter completed!