Gravitational Waves Gain Overtones ⚡ экспресс
Original: "Contribution from Nonlinear Quasi-normal Modes in GW250114"
After merging, black holes ring in a chord: for the first time, a nonlinear overtone of gravitational waves is isolated.
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When two black holes merge, spacetime rings not with a single pure note, but with quiet overtones. In event GW250114, physicists for the first time clearly heard nonlinear harmonics—opening a way to test Einstein’s theory in the harshest corners of the Universe.
🎯 LIGO detectors sense space stretching that is thousands of times smaller than an atomic nucleus — it’s like detecting a change in the distance to the nearest star by the width of a human hair.
🎬 In Interstellar, physicist [scientist:Kip Thorne]Kip Thorne[/scientist] helped create a realistic depiction of time warping near a black hole. Now, real overtones from such objects are testing Einstein’s theory in conditions where linear laws break down.