In this field is where the steel and iron were developed. 1200
years before the Europeans used the blast furnace, obtained cast
iron from iron ore were already been developed by the Chinese folks
by 4th century. In the 2nd century BC, refining iron into steel
had already been developed by the Chinese; in contrast to the popular
belief that Henry Bessemer discovered the process of refining iron
to steel. A superior weapon with a strong edge was created by welding
strong steel with weaker iron.
Chain pump was invented by the Chinese in the 1st century BC; this
device allows water to be pumped from lower to higher elevations.
This is also used for irrigations that are needed in farming. In
Europe, the first chain pump appeared in the 16th century.
Around 1st century AD, the Chinese developed a drilling method
to drill boreholes up to 48000 feet. Deep drilling was then used
to find natural gas. Mechanical Clocks was then invented in China
in the 8th century AD. The Chinese people invented this technology
in conjunction to astrology as the Emperors were regarded as cosmic
figures.
