Eleanor Roosevelt thanks a chemical engineering firm in Philadelphia for manufacturing water for the king and queen of England on their visit to America.
This video highlights a collection of letters from Eleanor Roosevelt to a chemical engineering firm in Philadelphia—thanking them for manufacturing water for a visit from the king and queen of England.
Mary Papanicolaou, the woman behind the man behind the Pap smear.
In a society that damned women for both plainness and adornment, wearing makeup became a defiant act of survival.
A basic scientific error hid in plain sight for decades until an Indonesian geneticist spent Christmas break on a lab bender.
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