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.
The monks, nuns, and friars at the forefront of alchemy in early modern Europe.
Jagadish Chandra Bose and the contentious search for plant intelligence.
What are laws against fortune-telling really meant to do?
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