A brief illustrated guide to 'scissors congruence' − an ancient geometric idea that’s still fueling cutting-edge mathematical research

This is a story about geometry, algebra and many different dimensions, best read with construction paper, scissors and tape on hand.

Mona Merling, Assistant Professor of Mathematics, University of Pennsylvania • conversation
Aug. 9, 2023 ~10 min

The mystery of the missing portrait of Robert Hooke, 17th-century scientist extraordinaire

Online sleuthing and deductive reasoning identifies what appears to be the only existent portrait painted of the celebrated scientist during his lifetime.

Larry Griffing, Associate Professor of Biology, Texas A&M University • conversation
July 27, 2020 ~10 min


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