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Matter & Energy

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illustration of Nernst effect

WHIRL AWAY  Electrons in platinum move in different directions depending on their spin when the metal is heated at one end. Scientists have observed this phenomenon, called the spin Nernst effect, for the first time.

empty space

HEAT WAVE  Accelerating at a high rate could make empty space seem hot, according to an idea called the Unruh effect. Scientists may have spotted signs of an analogous phenomenon in ripples of water.

balls of nanoparticles

TO DYE FOR  By changing the spacing between nanoparticles aggregated into balls, researchers created these inks of five different colors.

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