4 Iodo 1 Methylimidazole

"Tiangong Kaiwu" states that the brewing of wheat wine is mostly made of wheat koji. There are three main uses for malt wine.
One is for the enjoyment of sacrifices. The ancestors of ancient times, who feared the gods and worshiped the ancestors and worshiped the gods. In the sacrificial ceremony, Li wine is a necessary offering. The Li wine is offered to the gods and ancestors, expressing sincerity and praying for blessings, to ensure the abundance of the five grains and the peace of people and animals. "The Book of Rites and Luck" says: "Therefore, Xuan wine is in the room, and the Li < is in the household." Xuan wine is water, followed by Li wine, which shows that Li wine has a respectful position in the sacrifice.
The second is the joy of feasting. During festivals and gatherings, Li wine is often an addition to entertainment. Relatives and friends sit around and raise a glass to drink together. The sweetness of Li wine can add a pleasant atmosphere. "The Book of Songs · Wind · July" says: "Jujube is peeled in August, and rice is obtained in October. For this, spring wine is used to promote eyebrows and longevity." Describes the farmers who make wine after the autumn harvest, and use it during banquets to wish people a long life. It can be seen that Li wine enhances friendship in the occasion of banquets.
Third, it is a medicinal aid. Li wine is mild in nature and has certain medicinal effects. Ancient healers often used Li wine as medicine, or its medicinal power was diverged, or directly used to treat some diseases. For example, "Compendium of Materia Medica" also discusses the use of wine as medicine. As one of the wines, Li wine may have the effect of dissipating cold, clearing menstruation, and promoting blood circulation in medicinal use, which can relieve some of the discomfort caused by cold stagnation and poor qi and blood.

The reason for making a fire in the old wood is clear, but if you want to get a good fire, you also need a good method. The method of making methyl ether has various wonderful ways, which are now for you and Chen.
First, based on wood, choose good wood and use it. There are many types of wood in the mountain and forest. When the wood is dry and solid, if the wood is too wet, the fire will not be prosperous, and the fire will be smoky and the flame will be weak. Therefore, after cutting wood, it is often exposed to the sun, so that the moisture is exhausted and the texture is dry. It is a good choice.
Second, the tools for making fire are also important. In ancient times, when making fire, flint and moxa velvet were mostly used. Flint is hard in texture, and when it hits each other, it can produce sparks. And moxa velvet is soft and flammable, and when Mars falls on it, it can be ignited. When you hit a stone, you need to be fierce and accurate to get a star. When Mars drops moxa velvet, it blows it with gentle air quickly, causing its fire to gradually start.
Third, the method of gathering fire. At the beginning of the fire, the fire is weak and needs careful care. With thin branches, place them lightly on the fire, and gradually increase, so that the fire will gradually flourish. At the beginning, you should not put in big trees, so as not to extinguish the flame. When the fire is getting stronger, you can add coarse firewood, so that its flames can rise.
Fourth, the survival of fire. It is not easy to make fire, and it is also difficult to survive. If you want the fire to keep burning, you need to add firewood at the right time so that the fire can continue. And in a place sheltered from the wind, the fire is not easy to extinguish. If the wind is strong, use things to block it and protect its fire.
All these are the essential ways to make methyl ether and make fire. Although it is a small matter, it is related to the livelihood and cannot be ignored. Those who make good use of fire can benefit from it, but those who are not good will be afraid of danger. It is necessary to use it carefully and act with sensitivity, so that you can get a good fire and use it for all kinds of purposes.

The bow and crossbow of the husband's armor has a number of physical properties. When the string is stretched, it contains elastic potential energy. If the machine is buckled and the arrow is fired, this can suddenly turn the kinetic energy of the arrow and make the arrow shoot out quickly. This is the foundation of the power of the bow and crossbow, which is generated by the elastic deformation of the string.
Looking at the shape of the bow and crossbow, the bow body is well selected. The material is tough and elastic, such as bamboo, wood or horns. When the bow is drawn, the bow body is bent. This deformation causes stress in its internal structure. This stress is closely related to the elastic potential energy. The greater the stress, the more energy is stored, and the more the arrow is fired.
Furthermore, the flight of the arrow is related to aerodynamics. The body of the arrow is slender and the tip of the arrowhead is sharp. This design can reduce the air resistance during flight and make its trajectory stable. Moreover, the weight of the arrow is properly distributed, and the center of gravity is close to the end of the arrowhead, which makes it easier to maintain balance during flight and enhances the accuracy of shooting.
The range of the bow and crossbow is related to the force of the bow and the elastic coefficient of the bow. The greater the force and the more suitable the coefficient, the greater the initial speed of the arrow and the longer the range. However, manpower is limited, so the production of the bow and crossbow needs to weigh the material and structure to achieve the best performance.
In addition, when the bow and crossbow are fired, the friction between the bow string and the bow body and the arrow also affects the performance. If the friction is small, the energy loss is less, In the production process, grease and other substances are often used to moisten it to reduce its friction.
To sum up, the physical properties of a crossbow cover the conversion of elastic potential energy, aerodynamic principles, material stress and deformation, and friction. This is what the ancients studied when making tools to achieve the effect of killing the enemy and winning.

Mercury is the essence of pure yang, and its properties are light. It is a metal. At room temperature, it is liquid in shape and white like silver, so it is also called mercury. Its physical properties are specific, its density is quite high, its fluidity is good, and it has good thermal and electrical conductivity.
In terms of its chemical properties, mercury is moderately active. At room temperature, it can slowly react with oxygen in the air, and a mercury oxide film is formed on the surface. Although this film can slightly slow down the further oxidation of mercury, it is difficult to prevent it. If heated to a specific temperature, the reaction between mercury and oxygen is significantly intensified, and red mercury oxide is rapidly formed.
Mercury can form an alloy with many metals, which is called amalgam. Metals such as gold and silver can easily form amalgam with mercury. In ancient times, this property was often used in the field of metallurgy, such as the extraction of gold from ore with mercury, which formed amalgam with mercury and gold, and then evaporated by heating to obtain gold.
Mercury can also react with a variety of non-metals. If mixed with sulfur powder and ground, the two quickly combine to form mercury sulfide. This reaction is very important. Because mercury sulfide has strong stability and is much less toxic than mercury, when mercury is sprinkled, it is often treated with sulfur powder to prevent mercury volatilization and poisoning.
Mercury compounds also have a variety of chemical properties. For example, mercury chloride is highly oxidizing; mercury nitrate is easily soluble in water and hydrolyzes in water to become acidic. Many mercury compounds are highly toxic and need to be used and handled with extreme caution. In short, mercury has unique chemical properties and is used in many fields. However, due to its toxicity, it is necessary to adhere to safety regulations during use to ensure personal safety and environmental pollution.

The price of maize varies from time to time between the well of the market today, and it also varies according to the situation. In the past year, the wind and rain are good, and the fields and crops are prosperous, but the price is flat; if there is a disaster, the grain will not be harvested, and the price will rise.
In the early days, the seeds are sown in spring, and the farmers work hard, looking forward to the harvest in autumn. The seedlings have not yet grown, and the price is still low, because the quantity is not abundant, and the market will wait and see. In summer, the seedlings will grow gradually, but they will still not be harvested. The price will rise slightly, and the future quantity will not be known.
In autumn, the new valley will appear. If the harvest is quite abundant, it will be shipped by car and ship, and At this time, the stock of goods is like a mountain, and the merchants are competing to sell, and the price will drop. If the harvest is not good, there are few grains and many people are seeking, and the price will be high.
And maize is widely used, and can be used for food, wine, and livestock. If there are many eaters, the price will be high; if the business of brewing wine and feeding livestock is prosperous, the demand will also be large, and the price will follow. And the trade in the four directions, the merchants will travel, and the abundance of their land will lead to the price elsewhere.
As for the end of the year, the old valley is gradually exhausted, and the new valley is not enough. If the storage is abundant, the price will be stable; if the warehouse is empty, the price will rise sharply. It is made at the price of maize, for the time of day, the place of geography, the people and all kinds of things, and it cannot be determined in one word. Everyone in the city needs to judge the situation to know the change of its price.