Matter & Energy

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illustration of a clock and earth

YOUNG AT HEART  A clock placed at the Earth’s center would run slower than one on your nightstand. That means Earth’s core is 2.5 years younger than its surface, new calculations suggest.

CLOUD COVER  Shrinking the ice particles in cirrus clouds by blasting them with a laser could provide a method for tweaking the planet’s temperature. Scientists tested this technique in the lab, producing laser-induced explosions in ice particles.

people throwing a ball on a carousel

By playing catch while on a bare-bones carousel, participants in Genius discover the Coriolis effect.

Matter & Energy

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