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Stainless steel

 
   
 
Stainless steel does not rust and is used for cutlery, teapots and many other things. It was discovered by accident in 1913. Pieces of steel that had been used for experiments were thrown away, but then someone noticed that while most of the pieces rusted, a few stayed bright and shiny. These pieces were retrieved and examined and became the first pieces of stainless steel.
 
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