June 9

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Better Than News

Are You Sure

... that physicist, mathematician, and historian Pierre Duhem wrote: "A theory of physics is not an explanation. It is a system of mathematical propositions, deduced from a small number of principles, which have for their aim to represent as simply, as completely and as exactly as possible, a group of experimental laws."—?

On This Day in Fiction and Nonfiction

Topic of the Day

Knives