1107 ⟶ Wu Deren Combines Compass and Odometer in Engineering
The Chinese engineer Wu Deren combines the mechanical compas...Year
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1107
🧭 Yan Su Recreates South-Pointing Chariot
– The Chinese engineer Yan Su recreates the mechanical compass-vehicle of the south-pointing chariot, first invented by Ma Jun in the 3rd century.⟶
CompassNavigationSong DynastyMilitary Technology

📜 Wujing Zongyao Describes Gunpowder and Early Compass
the Chinese Wujing Zongyao, written by Zeng Gongliang and Yang Weide, is the first book to describe gunpowder formulas; it also described their use in warfare, such as blackpowder-impregnated fuses for flamethrowers. It also described an early form of the compass, a thermoremanence compass.⟶
GunpowderMilitary TechnologyCompassInventionsSong DynastyWarfare

⚙️ Song Dynasty Develops Precursor to Bessemer Process
– the Song Chinese innovate a partial decarbonization method of repeated forging of cast iron under a cold blast that Hartwell and Needham consider to be a predecessor to the 18th century Bessemer process.⟶

Song DynastyMetallurgyManufacturingIndustrial Revolution

🧭 Shen Kuo's First Reference to Magnetic Compass
🕰️ Su Song's Astronomical Clock Tower Construction
– The Chinese mechanical engineer and astronomer Su Song incorporates an escapement mechanism and the world's first known chain drive to operate the armillary sphere, the astronomical clock, and the striking clock jacks of his clock tower in Kaifeng.⟶

ClockmakingAstronomyMechanical EngineeringSong Dynasty

🧭 Wu Deren Combines Compass and Odometer in Engineering
The Chinese engineer Wu Deren combines the mechanical compass vehicle of the south-pointing chariot with the distance-measuring odometer device.⟶

NavigationChinese HistorySong DynastyMilitary Technology
