When we hear about moving objects with electricity, most of us imagine a "pulling force." Positive and negative charges ...
Scientists have pulled off a feat long considered out of reach: getting light to mimic the famous quantum Hall effect. In their experiment, photons drift sideways in perfectly defined, quantized steps ...
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Do you weigh more when an elevator goes up or when it comes down?
Your weight doesn't change because of gravity but because the floor pushes back. Physicists explain why elevators briefly ...
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