Quantum entanglement allows two particles to be linked regardless of the distance separating them, meaning a change in one instantly affects the other – even if they're light-years apart.
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Quantum entanglement allows two particles to be instantaneously correlated, regardless of the distance separating them – a phenomenon Einstein famously called "spooky action at a distance."
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Some superconductors, when cooled below their critical temperature, exhibit the Meissner effect, completely expelling magnetic fields from their interior.
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