After the dragon finished stitching up the wound on Hu Donkey'er's belly, Sun Yi, Jiang Laojun, and Stuffy Egg were all sweating profusely. Pen, fun, pavilion www. biquge。 info

Only then did the milk baby dare to step forward and take a wet hand towel to wipe Sun Yi's sweat.

Sun Yi stretched his neck and head motionlessly to cooperate with the baby, this beauty in his heart!

――It turns out that this is how the little nurse wipes the sweat of the surgeon!

When the baby was done, Sun Yi thought back to the first-aid training content he had learned, used up the poor gauze, adhesive tape, and band-aids in the first-aid kit, covered the wound on the donkey's abdomen, and then took apart the triangular scarf to wrap the wound from the lower abdomen to the lower waist.

Sun Yi took a breath, and then dealt with Hu Donkey's injured leg.

The small bone of the donkey's left leg was fractured, and the bones could be seen with the naked eye that they were not together.

Sun Yi asked Yilong and Jiang Laojun: "Which of you will take the bones?" ”

One of these two walked the rivers and lakes, and the other saw a lot of wounds in the army, Sun Yi estimated that someone must be boneless.

Sure enough, both of them would.

Jiang Laojun chattered: "It's useless, I've already taken it in the morning." The bones in the legs are no better than elsewhere, and if the body moves a little, the bones will deviate by themselves. Lord Lidel, let's not bother with this, Hu Donkey'er will suffer less of a crime. Alas, Hu Donkey, as long as you can save your life, this leg must be useless, don't be sad. ”

Sun Yi ignored Jiang Laojun and asked a dragon to raise Hu Donkey's injured leg.

Sun Yi walked over and took the bag in Daoist Jia's hand, found a pot to dry, and poured the watery stone powder into it.

The chemical composition of aqueous stone is calcium sulfate.

To be precise, the crystal composition of aqueous stones is one calcium sulfate molecule and two water molecules.

Sun Yi slowly and patiently stir-fried the watery stone powder over low heat.

When the aqueous stone crystals are heated to 107°C to 170°C, the water molecules in the crystals escape. The new crystals formed are made up of two calcium sulfate molecules and a water molecule.

Not long after, the white powder in the pot was wrinkled like water, and the water in the water-bearing stone was fried and turned into water vapor.

Sun Yi took a bowl of fried watery stone powder and returned to Hu Donkey.

Sun Yi instructed a dragon, "Give him the bones." ”

Jiang Laojun sighed, motioned for the stuffy man to press Hu Donkey's shoulder, and pressed Hu Donkey's arm himself.

The sun fell and stepped forward quickly, pressing the donkey's other arm.

Sun Yi said to Hu Donkey: "Don't worry, you will never let you suffer in vain." ”

Hu Donkey agreed, closed his eyes nervously, and began to mutter:

"When I have an acre and three points of land, I will plant a tuft of garlic, a tuft of green onions, and then three chili seeds......

A dragon's hands began to rub against the donkey's injured leg.

The stuffy guy interrupted Hu Donkey's chatter, "Township Party, when did you plant spicy seeds in your hometown?" ”

Hu Donkey replied: "To plant spicy seeds, you have to raise seedlings first, and after the New Year, in a warm place in the house, sprinkle the soaked spicy seeds on the dustpan, cover them with grass, and sprinkle them every day...... Ahh

Hu Donkey let out a heart-rending howl, and beads of sweat the size of beans suddenly appeared on his face.

When the bone is grafted, the attached nerve is pulled, and the pain is almost irresistible.

Jiang Laojun let go of his hand, "Okay, okay, it's over." ”

Sun Yi loosely wrapped a strip of dry cloth around the fractured part of the donkey, all the way to the ankle, exposing only half of the donkey's soles.

Then he took a cloth and sprinkled the fried watery stone powder on top of it, and folded it into a thick strip.

Sun soaked a thick strip of cloth in water and quickly wrapped it around the first layer of dry cloth.

Sun Yi asked Hu Donkey: "Is it hot?" ”

Hu Donkey replied: "I think it's a little burning." ”

"Tell me if it's too hot."

Sun Yi wrapped Hu Donkey's injured leg several times from calf to the sole of his foot until Hu Donkey's left leg became a big dumpling.

Rubbing his hands, Sun kept his waist up.

Everything that can be done has been done,

The supplies brought from the afterlife in the first aid kit are all gone,

The rest depends on the luck of Hu Donkey.

Guarding Hu Donkey's sunfall, he carefully touched Hu Donkey's zongzi legs, and suddenly shouted: "The wet cloth has become hard!" ”

Sun Yi replied: "It's right to harden!" After it was completely hardened, the leg bones of the donkey were fixed and would never deviate again. When the bones grow, you can still run and jump! ”

The fried aqueous stone powder has a characteristic that it is immediately absorbed when it encounters water, and at the same time the heat is released, and it re-condenses back into the original crystal structure, and then becomes a whole stone.

It was by taking advantage of this property of the water-bearing stone that Sun Yi made chalk.

In later generations, the fried water-bearing stone had a popular name, called "cooked gypsum".

Sprinkle cooked gypsum powder on the gauze, which is called "gypsum gauze".

The process of dressing the fracture site with plaster gauze dipped in water, and the cooked plaster can be restored to raw plaster within ten minutes, and the process of gauze hardening and fixing the fracture site is called "plaster" in later hospitals.

Everyone gathered around to visit.

A dragon poked the donkey's plaster leg a few times with his fingers, "This method is good!" This guy is hard enough to hold the bones. ”

Jiang Laojun flicked his fingers a few times, "This head is wrapped in cloth, like adobe with wheat straw added, don't worry about cracking." ”

The sullen man said: "In the past, if someone broke their legs, most of them had bad bones. In the future, with this method, I will no longer be afraid of breaking people's legs. ”

The sun fell and praised: "This method is very useful in the army!" ”

Jia Daoshi suggested: "You might as well use gypsum stones to do this in the future." The water-bearing stone is sold in the pharmacy, and it is not cost-effective to use the water-bearing stone. ”

The sun fell and nodded and said: "The gypsum stone has something to do in the salt lake, you can pick up as much as you want." ”

Only then did Sun Yi understand that the people of the Ming Dynasty knew about gypsum.

After careful inquiry, Sun Yi found that the people of the Ming Dynasty not only knew the relationship between raw gypsum and cooked gypsum, but also knew that the heat was very important when frying gypsum. If the heat is too large, it will become a dead plaster when burned, and it will not be denatured when exposed to water. It's just that the people of the Ming Dynasty only used plaster as putty for construction, and they didn't know the ingenious application of gypsum gauze.

The people of the Ming Dynasty also knew the relationship between aqueous stone and gypsum stone. To use the analogy of Jia Daoshi, water-bearing stone and gypsum stone are like green salt and coarse salt: although they are both salt, green salt is more transparent and beautiful than coarse salt, and it is big and expensive, green salt can be used in medicine, and coarse salt can only be used for rice, so it is definitely two different things.

In Sun Yi's eyes, the aqueous stone is a neatly crystallized calcium sulfate, with high purity and food grade; Gypsum stone is a crystalline chaotic calcium sulfate, low purity, natural non-toxic grade; The building gypsum of later generations is the product of chemical plants, industrial grade, toxic!