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Science & Environment News

Phys.org

Science & Environment / Phys.org

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Tiny floating magnet detects ultrafaint magnetic fields at room temperature

Measuring faint magnetic fields is useful in a number of areas, including mapping brain activity, monitoring hearts and probing fundamental physics. Typically, picking up such weak signals requires expensive or bulky equipment, such as liquid-helium cooling tanks or specially shielded rooms that block out Earth

8 Aug 2026 1:50 am