Tiangong Kaiwu
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The Tiangong Kaiwu, or The Exploitation of the Works of Nature was a Chinese encyclopedia compiled by Song Yingxing. It was published in May 1637 with funding provided by Song's patron Tu Shaokui. The
Two types of hydraulic-powered chain pumps from the Tiangong Kaiwu.
A two-masted Chinese junk ship, from the Tiangong Kaiwu.
A giant draw loom machine for figure weaving, from the Tiangong Kaiwu.
Smelting silver ore and the process of removing lead compounds, from the Tiangong Kaiwu.
Potassium nitrate
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Potassium nitrate is a chemical compound with a sharp, salty, bitter taste and the chemical formula KNO3. It is a potassium salt of nitric acid. This salt consists of potassium cations K+ and nitrate
Tiangong Kaiwu
…with coal briquettes in an earthen furnace with a still-head that sent over sulfur as vapor that would solidify and crystallize. For the preparation of saltpetre, Song Yingxing wrote: Saltpetre (solve-stone) is found both in China and in the lands of neighboring peoples, all have it. In China it is chiefly…
Potassium nitrate
Potassium nitrate 13-0-45 KNO3 fertilizer in 1 KG commercial package
Potassium Nitrate 13-0-45 KNO3 fertilizer