Flor

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For, in the end, Brearley did manage to create cutlery from stainless steel, and it’s the transparent protective layer of chromium oxide that makes the spoon tasteless, since your tongue never actually touches the metal and your saliva cannot react with it; it has meant that we are one of the first generations who have not had to taste our cutlery.
Flor
Stainless steel was accidentally discovered through multiple attempts at trying to manufacture stronger steel. Only noticed due to having remained in a pile of rejected attempts where the surrounding pieces had all rusted away.
Stuff Matters: Exploring the Marvelous Materials That Shape Our Man-Made World
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