Why a “100-year-old” formula matters at the edge of a black hole At first glance, it might seem absurd that a “100-year-old” set of formulas for pi could tell us anything about black holes, the most ...

More than a century after Srinivasa Ramanujan scribbled his lightning-fast formulas for π in a notebook, physicists are finding that the same strange patterns help describe black holes and the fabric ...