Chines inventions

Gunpowder

700 BCE

Under the rule of the T'ang Dynasty, about 700 AD, people used gunpowder more. T'ang Dynasty emperors used gunpowder to put on great fireworks displays. Two hundred years later, in 904 AD, Chinese inventors saw that you could also use gunpowder as a weapon. First the army used fire arrows and fire spears.

Compass

206 BCE

The magnetic compass was first invented as a device for divination as early as the Chinese Han Dynasty (since about 206 BC). The compass was used in Song Dynasty China by the military for navigational orienteering by 1040–44, and was used for maritime navigation by 1111 to 1117.

Paper making

105 BCE

The invention of paper greatly affects human history. Paper already existed
in China since 105 A.C, however, a eunuch named Cai Lun (ca. 50 AD –
121) made significant innovation and helped drive its widespread adoption.
His advanced paper-making technology then spread to central Asia and the
world through the Silk Road.

Porcelain

1736

1,200 and 1,400 °C (2,200 and 2,600 °F). The toughness, strength, and translucence of porcelain, relative to other types of pottery, arises mainly from vitrification and the formation of the mineral mullite within the body at these high temperatures. Though definitions vary, porcelain can be divided into three main categories: hard-paste, soft-paste and bone china.

Cast iron

1770

Cast iron is a group of iron-carbon alloys with a carbon content greater than 2%. Its usefulness derives from its relatively low melting temperature.