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▶youtube SciencePhysics first seen 1 d ago, last 4 min ago, peak #6

Why Does -1/12 Keep Appearing Everywhere In Physics?

A discussion of the surprising result that the sum of all positive integers, 1+2+3+..., is treated as equal to -1/12, and why this value keeps showing up in real physics, from string theory to the Casimir effect. The topic is drawing wide attention as viewers debate whether the assignment is a mathematical trick or reflects something deeper about how regularisation works in physical calculations.

Why now: The counterintuitive claim that an infinite sum of positive numbers equals a negative fraction fascinates people and touches on real physics like string theory.

PBS Space Time-1/12string theoryCasimir effect

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