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▶youtube SciencePhysics first seen 2 d ago, last 7 h ago, peak #2

How Can Infinity Equal -1/12? Physics Explains

Original: How Can Infinity = -1/12? The Answer May Explain How The Universe Works

A physics explainer examines the famous mathematical result that the sum of all natural numbers, 1+2+3..., can be assigned the value -1/12 through a technique called Ramanujan summation. The counterintuitive result is not a normal sum but appears in quantum field theory and string theory, where it helps produce correct physical predictions, prompting renewed debate about what the math really means.

Why now: The counterintuitive claim that infinity equals a small negative fraction fascinates people and connects to deep questions about how physics describes the universe.

PBS Space TimeSrinivasa RamanujanLeonhard Euler

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