Uploaded February 2026 | Updated September 2026, 2 weeks ago

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Ed Copeland goes deep as we explore how we cracked an infinite sum relating to black holes. The extra bit as at youtu.be/s8Jd8Z7A5tA -- More links & stuff in full description below ↓↓↓

Ed Copeland is a physics professor at The University of Nottingham

More Ed on Numberphile - youtube.com/playlist?list=PLt5AfwLFPxWJwf-59lYWThTpSj2Ivt5jB

Ed on our sister physics channel Sixty Symbols - youtube.com/playlist?list=PLcUY9vudNKBNtF1y-sneLuyCTE-Mda561

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