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Matter & Energy

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meteor shower

OTHERWORLDLY SOUNDS  Falling meteors can be seen and heard at the same time because of sounds generated by radio waves blasted from the falling space rocks, researchers propose.

double-slit experiment

DO THE WAVE  Quantum matter acts like both a particle and a wave, as demonstrated by the famous double-slit experiment (illustrated above). Electrons sent through a pair of slits interfere like waves, creating peaks and troughs. This wave nature of matter could be used to create a tractor beam that could reel in atoms or molecules, a new study proposes.

black hole

LAID BARE  Inside a black hole, the extreme curvature of space (shown) means that the standard rules of physics don’t apply. Such regions, called singularities, are thought to be shrouded by event horizons, but scientists showed that a singularity could be observable under certain conditions in a hypothetical curved spacetime.

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