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In the 1940s, Americans found a new way to love salt. Not simply for sprinkling on food - we'd acquired a taste for the mineral long before that - but for spreading on roads and sidewalks. Salt became a go-to method to de-ice frozen pavement.
9. High School Teacher
Least stressful: 1. University Professor. With the opportunity to earn tenure, guaranteeing lifetime employment, and students who want to be i…