What the Ancients Knew: Surgical Blades
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Surgical blades in Japan are made from the soft steel that was used in ancient Japan for samurai swordmaking. Learn more with host Jack Turner on The Science Channel's series, "What the Ancients... (more info)

Surgical blades in Japan are made from the soft steel that was used in ancient Japan for samurai swordmaking. Learn more with host Jack Turner on The Science Channel's series, "What the Ancients Knew."

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