Back when she was a self-described hippie graduate student in flowers and beads, Tanya Atwater figured out how the theory of seafloor spreading applied to geological features on land. It was a seismic—get it?—discovery. And it didn’t come easy:

When a recruiter from the California Institute of Technology visited Atwater’s high school, she asked about science degrees. But Caltech didn’t accept women; they would just get married, quit and waste their educations, Atwater remembered being told. She visited Harvard next, which pointed her toward the neighboring women’s college, Radcliffe — a nonstarter, as she lacked the Greek or Latin prerequisites. 

Never mind: The Massachusetts Institute of Technology would do. 

MIT welcomed women into its science programs. When Atwater asked a professor why, he replied MIT-educated women would raise great children, which she took to mean boys.

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What Can We Gain by Losing Infinity?

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“Ultrafinitism, a philosophy that rejects the infinite, has long been dismissed as mathematical heresy. But it is also producing new insights in math and beyond.”