What was the earliest globe made of?

The earliest globe material was made of brass.

The globe made by martin behaim is considered as one of the earliest globes in the world. This globe was completed in 1492, made of brass and about 5 1 cm in diameter. The globe is decorated with various luxurious patterns, including figures, animals and plants.

In addition to Behaim's globes, some other scholars also made globes. For example, the Greek scholar Eratosthenes made a globe in the 3rd century BC, which is considered to be the first scientific globe. In China, Shen Kuo, a scholar of the Song Dynasty, also made a globe, which is called the "armillary sphere".

Globe is one of the important tools for people to explore and understand the earth. Its development course reflects the deepening of human cognition of the earth and the progress of science and technology.

Development course of globe

In the 3rd century BC, the Greek astronomer Aristotle put forward the theory that "the earth is round", and thought that the earth is a sphere. Since then, astronomers have applied the spherical concept of the earth to drawing and making the earth model, and made the spherical model. In 200 BC, Ptolemy, an ancient Roman geographer, put forward the famous design idea of maps and globes, which made the concept of globes more perfect.

Read out the number

Global is also an official national publication, which is related to copyright. Globes can only be published by publishing houses. Like books, books are not published by printing houses. The printing factory is only a processing unit and does not own the copyright of books. If the printing factory directly prints and sells wholesale, it is definitely an act of infringement of intellectual property rights, that is, piracy.

Similarly, the globe is not an ordinary teaching instrument. If the teaching instrument enterprise directly sells the globe, it is also piracy and infringement (the publishing house can entrust the teaching instrument factory to process it).

principle of operation

Intelligent voice globe is a new generation of learning and intelligent reading tools which adopts digital voice technology and advanced optical recognition technology of invisible codes. The globe can intelligently identify the signals given by users, play the detailed information of the country, and light the led lights representing the national capital. Multifunctional globe is a powerful, reliable and interesting learning and teaching tool, and it is a typical combination of traditional products and high technology.