Why did Sinan invent and who invented Sinan?

Sinan is the earliest compass invented in the Spring and Autumn Period and the Warring States Period in China, and it is not a compass.

As early as more than 2,000 years ago in the Han Dynasty (206 BC and 220 AD), the Chinese discovered that a stone on the mountain had the magical property of absorbing iron, and found that a long stone could guide the north, and they called this stone magnet. Ancient skilled craftsmen polished and chiseled the magnet into a spoon shape, and the south pole (S pole) of the magnet was ground into a long handle, placed on a smooth mirror-like chassis made of bronze, and then cast with directional carvings. When this magnetic spoon stops rotating on the chassis, the direction of the spoon handle is due south, and the direction of the spoon mouth is due north, which is the world's earliest instrument invented by our ancestors to indicate the direction, called Sinan.

Among them, "division" means "to refer to".

According to the records in the book "Han Feizi" in the Spring and Autumn Period and the book "On Balance" written by the thinker Wang Chong in the Eastern Han Dynasty, as well as the research of modern scientific stone examiners and the Sinan model made, it is shown that Sinan is made of natural magnets (known as Cishi in ancient times, and the phenomenon of magnet iron absorption is described with love) to make a soup spoon, and its spoon handle indicates the south. In the Spring and Autumn Period and the Warring States Period, there are records about Cishi in the book "Guanzi" and "The Classic of Mountains and Seas", and in the book "Guiguzi" and "Lü's Spring and Autumn Period" in this period, there are further records of Cishi absorbing iron. This is arguably the earliest magnetic compass in ancient times, and Sinan's model is now on display at the Chinese History Museum in Beijing and many other museums.

It is said that the Yellow Emperor (about the 47th century BC) and the Duke of Zhou of the Western Zhou Dynasty (about the 21st century BC) made and used the guide car, but after later literature research and model making tests, it has been proved that the guide car has nothing to do with the compass, and the guide car after the Han Dynasty relied on the mechanical structure rather than the magnetic guide. A model of a guide car is also on display at the Chinese History Museum in Beijing.

It's just to make it easier to find the way. The ancients did not have such a scientific thing as a map, and there was no road in all directions like now. Sinan can ensure that the vehicle will not go the wrong way under the attraction of magnetism.

It's so convenient as GPS now.

Sinan is the earliest compass invented in the Han Dynasty and even the Warring States Period in China to indicate the north-south direction, and it is not a compass.

Indicating the direction, it was invented during the Warring States period for the direction of marching operations.

Sinan is the invention of the ancient Chinese working people in the long-term practice of the understanding of the magnetic properties of objects, because of the long history can not be verified who invented it.

According to the records of the "Ancient Mine Record", it first appeared in the area of Cishan in Hebei during the Warring States Period. According to modern archaeologists, it is speculated that natural magnetite is carved into a spoon-shaped thing and placed on a smooth plate, on which the direction is engraved, and the direction can be discerned by using the role of a magnet guide. The only physical object found is in Chengdu, Sichuan.

It is the ancestor of the compass used today.

The historical origin of Sinan.

According to the records of "Guanzi" and "Lü's Spring and Autumn Period", which were written at the end of the Warring States period more than 2,000 years ago, the local people found that a kind of stone on the mountain had the magical property of absorbing iron, and they called this kind of stone Cishi.

The magnetic guide characteristics of Sinan are based on the records of "Sinan's ladle, cast on the ground, its guide guide" in the book "Han Feizi" of the Spring and Autumn Period and the "On Balance" written by Wang Chong, a thinker in the Spring and Autumn Period and the Eastern Han Dynasty, according to the famous historian of science and technology in China, Wang Zhenduo, a famous historian of science and technology in China.

The south pole (S pole) of the magnet is ground into a long handle, placed on a smooth mirror-like chassis made of bronze, and then cast with directional engravings. When this magnetic spoon stops rotating on the chassis, the direction of the spoon handle is due south, and the direction of the spoon mouth is due north, which is traditionally considered to be the world's earliest magnetic guide instrument, called Sinan. Among them, "division" means "to refer to".

Sinan was invented during the Warring States period.

Sinan is an instrument used to identify the direction in ancient China, a compass invented in the Spring and Autumn Period and the Warring States Period to indicate the direction of the north and south, and it is also the primary invention of the ancient Chinese working people in the long-term practice of understanding the magnetism of objects.

According to modern archaeologists, it is a spoon-shaped thing carved from natural magnetite ore, placed on a smooth plate, the plate is engraved with directions, and the role of the magnet guide is used to achieve the role of identifying the direction. It is the ancestor of the compass used today.

As early as more than 2,000 years ago, the Chinese discovered a strange stone on the mountain, which has the magical property of absorbing iron, and found a long stone that can indicate the direction of north and south, they called this stone magnet.

After a long period of exploration and research, the ancient skilled craftsmen polished and carved the magnet into a spoon shape, and the south pole (S pole) of the magnet was ground into a long handle, placed on a smooth mirror-like chassis made of bronze, and then cast with directional carvings.

When the magnetic spoon stops rotating on the chassis, the direction of the spoon handle is just due south, and the direction of the spoon mouth is due north, so the ancient Chinese invented the world's earliest instrument to indicate the direction and named it "Sinan".

According to the records of "Han Feizi" in the Spring and Autumn Period and Wang Chong's "Lunheng" in the Eastern Han Dynasty, as well as the research of modern scientific archaeologists and the Sinan model made, all illustrate the manufacturing material, shape and use characteristics of Sinan.

In the Spring and Autumn Period and the Warring States Period, there are also records of magnets in the books "Guanzi" and "Classic of Mountains and Seas". In the books of "Guiguzi" and "Lü's Spring and Autumn" of the same period, there are also descriptions of magnets absorbing iron.

Legend has it that it was invented by the Yellow Emperor, but it was actually invented during the Warring States period.

The principle is made according to the characteristics of the magnet indicating the north and south. The main material is magnets.

In the Spring and Autumn Period, Guan Zhong, a famous politician of Qi State, recorded in his book "Guanzi": Those who have a ci stone on it, and copper and gold under the lead. "Cishi"It's a magnet"Copper gold"It's a kind of iron ore.

This property of the magnet was used by the ancients to make guide tools. The earliest guide tool was called Sinan. It was widely used during the Warring States period.

It is made from a natural magnet and looks like a spoon. The center of gravity is better than the bottom of the middle, the chassis is smooth, engraved around the twenty-four directions, put the long spoon on the chassis when using, gently dial it with your hand to make it turn, and the long handle points to the south after stopping.

Warring States period. The compass, called Sinan in ancient times, is mainly composed of a magnetic needle mounted on an axis, the magnetic needle can rotate freely under the action of the natural geomagnetic field and remain in the tangent direction of the magnetic meridian, the south pole of the magnetic needle points to the geographical south pole (magnetic field North Pole), and the direction can be discerned by using this performance.

Introduction to CompassIt is commonly used in navigation, geodesy, travel and military applications. There are three types of components for the compass that physically indicates the direction, namely the Sinan, the compass and the magnetic needle, all of which belong to Chinese inventions. According to the records of the "Ancient Mine Record", it first appeared in the Cishan area during the Warring States Period.

The compass is the result of the understanding of magnetism by the ancient Chinese working people in long-term practice. As one of the four great inventions of ancient China, its invention has played an immeasurable role in the development of human science and technology and civilization. In ancient China, the compass was first used for rituals, ceremonies, military affairs, divination and feng shui to determine directions.

1. Sinan was invented during the Warring States Period.

2. About Sinan: It is the predecessor of the compass, but in fact, there is another thing that indicates the direction before the compass called Sinan, according to records, Sinan appeared in the Warring States Period Zhao State, and the compass was invented on the basis of it. Sinan is the collective wisdom accumulated by the ancient Kanyu scholars in China in the long-term practice of observing the sky and measuring the earth and measuring the phase of yin and yang.

At present, the only physical part of the remaining part of the ridge found is in Chengdu, Sichuan.

3. Sinan, which is made of natural cherry peel magnet, has a low finished product and weak magnetism. In the Song Dynasty, people invented the artificial magnetization method and manufactured the compass fish and compass, which were made of natural magnet friction steel needles to maintain the performance of the guide under the action of geomagnetism; In the future, it will be installed on the azimuth disk, and it will be called a compass. This is a big leap in the history of the compass.