Science and Invention


  • Compass
    Compass is a simple device for orientation identification. It consists of a rotational magnetic needle loaded on a shaft and a directional plate. It is one of the four great inventions of ancient China that has exerted profound influence on the development of...
    Mar-21 - 2014 | No Comments | More ->

  • Si Nan
     Si Nan is China's earliest south-north direction-pointing device invented in the Spring and Autumn and Warring States Period. The word "Si" means "pointing to" and "Nan" means "the South". As early as more than 2,000 years ago, the Chinese discovered...
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  • The South-Pointing Turtle
     "The south-pointing turtle" was designed by Chen Yuanliang of the Southern Song Dynasty. It is a turtle carved out of wood that has a small slip of magnet inside its stomach. A steel needle is inserted from the tail and connects with the magnet. The...
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  • The South-Pointing Fish
     "The south-pointing fish" was recorded in the documents of the Northern Song Dynasty. Such direction-pointing device is a thin steel plate cut into the shape of a fish magnetized in the geomagnetic field. The tail of the fish is magnetized in the...
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  • The Development of the Compass
     The earliest compass was very complicated. In the Southern Song Dynasty, there were compasses with three or four layers of directions and later appeared compasses with seven or eight layers of directions. The accumulation of directions was due to the...
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  • Compass and Ancient Navigation
     China, a country with long coastal lines, has a long history of shipbuilding and navigation. After the Song Dynasty, thanks to the use of the compass for finding directions, voyages crossing the Indian Ocean to the eastern coast of Africa were made...
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  • Gunpowder
    Gunpowder is the first explosive substance mankind learnt to use and also one of the four great inventions of ancient China. The invention of gunpowder should in a way be attributed to alchemists of ancient China, who drew inspiration from the fire-ignition...
    Mar-21 - 2014 | No Comments | More ->

  • Bronze Blunderbuss
     Unearthed from Banlachengzi, A'cheng County, Heilongjiang Province in July, 1970, it is the earliest extant bonze blunderbuss in the world.The bronze blunderbuss consists of a muzzle, powder chamber and caudal hole. The caudal hole is hollow installed...
    Mar-21 - 2014 | No Comments | More ->

  • The Medicinal Value of Gunpowder
     Gunpowder is the mixture of sulfur, saltpeter and char, of which the former two items were once recorded as important medicinal materials in Shennong's Classic of Materia Medica, the first pharmacological classics in China compiled in as early as the...
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  • Fireworks
     During the Spring Festival, the Chinese people like to set off fireworks besides setting off firecrackers. Fireworks, also called “skyrockets”, were evolved from firecrackers. They consist of three parts including the fuze, rocket propellant and...
    Mar-21 - 2014 | No Comments | More ->


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