Quantum effects cause particles to behave like waves that interfere with each other.
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The quantum world’s ambiguities have been demonstrated on the largest scale yet, exploring the limits of quantum mechanics: more than a billion atoms inside a glass bead act as single quantum waves, causing macroscopic matter to interfere with each other, a key step in testing the theory of quantum gravity.
In the early 20th century, physicists realized that matter seemed fuzzy on tiny scales. Previous experiments had shown that particles such as electrons and atomic nuclei were solid, but new experiments…
