Waldo Semon took a detour in his assigned laboratory research one day and ended up inventing the world's second-best-selling plastic: polyvinyl chloride, a.k.a. PVC, a.k.a. vinyl.
Semon was born in 1898 in Demopolis, Alabama, but moved with his ...
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Semon was born in 1898 in Demopolis, Alabama, but moved with his ...
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