Prosthetic limbs staryted out as wood but evolved to metal, which evolved to a aluminum alloy called Duralumin
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Facts
The prosthetic limb was used for soldiers that had lost their limbs in the war. It is historically significant because it was used because without it they wouldn’t be able to use their lost limb without it. There were prosthetics for legs and arms too. They were initially made of wood but then were made with metal and after a plane accident, a man named Marcel lost his leg. His brother, Charles, an aeronautical engineer, made him an artificial leg out of a aluminum alloy called duralumin, which was half as heavy has wood and sleeker. Although it cost more, it was more durable than wood, hence the name, and saved money in the long run.