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Atomic Nuclei Measure Gravity ⚡ экспресс

Original: "Nuclear Heterodyne Interferometry for Gravitational Spectroscopy"
· Ralf Röhlsberger
arXiv:2604.17157 · 2026-04-18 · CC BY · ⏱ 1 min · Instrumentation and Detectors General Relativity
Physicists have found a way to spot how gravity slows time in atomic nuclei, using a height difference of just a couple of meters.
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Gravity slows time: a clock on the second floor runs fast compared to one in the basement. The new method catches this effect in atomic nuclei using synchrotron light. A tiny frequency shift builds up like a phase slip — and after a few hours at a height of three meters, it becomes noticeable. In this way, nuclei will help test Einstein's theory with record precision.

🎯 Iron-57 nuclei work at ordinary temperatures, needing no bulky cryostats — it's the only isotope that enables such ultra-precise measurements on a tabletop.

🎬 In 'Interstellar', the characters face a monstrous time differential near a black hole; the new method catches the same effect, only billions of times weaker, on a lab bench.

\frac{\Delta f}{f} = \frac{g \Delta h}{c^2}
The higher you go, the faster clocks tick: a one-meter lift speeds up their rate by a minuscule fraction — about 10^(-16) of the original frequency.
Scientists
Christian DopplerD. B. McLaughlinDidier QuelozMichel MayorR. A. RossiterEmmy Noether
Tags
spectroscopy spacetime curvature Standard Model
Laws
Doppler effectNoether's theoremMaxwell's equationsPlanck's lawPlanck–Einstein relationWien's displacement law
Original: arXiv:2604.17157 · CC BY · bridge42worlds