Mynd:Yuan Dynasty - waterwheels and smelting.png

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Yuan_Dynasty_-_waterwheels_and_smelting.png ‎(800 × 592 mynddílar, skráarstærð: 262 KB, MIME-gerð: image/png)

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Lýsing
English: This medieval printed illustration depicts waterwheels powering the bellows of a blast furnace in creating cast iron. This illustration is taken from the 14th century treatise Nong Shu, written by Wang Zhen in 1313 AD, during the Chinese Yuan Dynasty.
Dagsetning AD
Uppruni http://www.waterhistory.org/histories/waterwheels/
Höfundarréttarhafi Wang Zhen

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núverandi28. desember 2007 kl. 09:19Smámynd útgáfunnar frá 28. desember 2007, kl. 09:19800 × 592 (262 KB)Mywood{{Information |Description= This medieval printed illustration depicts waterwheels powering the bellows of a blast furnace in creating cast iron. This illustration is taken from the 14th century treatise Nong Shu, written by Wang Zhen in 1313 AD, during t

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