October 31

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Better Than News

Beyond Plausible

In Other Words

Are You Sure

• ... that physicist and electrical engineer Galileo Ferraris was a pioneer of AC power systems, and inventor of the induction motor?

• ... that mathematician Karl Weierstrass formalized the definition of the continuity of a function, proved the intermediate value theorem and the Bolzano–Weierstrass theorem, and used the latter to study the properties of continuous functions on closed bounded intervals?

Topic of the Day

Horror