Cold blast
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Cold blast, in ironmaking, refers to a metallurgical furnace where air is not preheated before being blown into the furnace. This represents the earliest stage in the development of ironmaking. Until
Section of a 17th and 18th century blast furnace. The bellows, at right, draw in air directly from the atmosphere.
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Han dynasty
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The Han dynasty was an imperial dynasty of China established by Liu Bang, and preceded by the short-lived Qin dynasty and the interregnum known as the Chu–Han Contention. It was succeeded by the Three
Statue of a horse trampling a Xiongnu warrior, at the mausoleum of Western Han general Huo Qubing (d. 117 BC), who fought in the Han–Xiongnu War. This is the first known monumental stone statue in China.
A Western Han painted ceramic mounted cavalryman from a general's tomb at Xianyang, Shaanxi
A Western or Eastern Han bronze horse statuette with a lead saddle
These rammed earth ruins of a granary in Hecang Fortress (河仓城; Hécāng chéng), located approximately 11 km (7 mi) northeast of the Western Han-era Yumen Pass, were built during the Western Han (202 BC – 9 AD) and was significantly rebuilt during the Western Jin (280–316 AD).