Superfluid Helium Feels How the Earth Spins ⚡ экспресс
Original: "Quantum Sensing of Gravitational Frame-Dragging with a Superfluid $$^4$$He Gyrometer"
A lab experiment will capture how Earth twists space-time.
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Earth doesn't just spin — it drags the fabric of space along with it, like a spoon dragging viscous honey. Scientists have developed an experiment with superfluid helium to capture this nearly elusive effect. The device is so sensitive that it can detect a turn of one revolution in 4 billion years.
🎯 The effect was predicted in 1918, but it was only measured in 2004 — with the help of satellites.
🎬 In "Interstellar", this effect twists space-time around a black hole so strongly that on Miller's planet, giant waves surge up.