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flag MIT physicists captured the first images of second sound, a wave-like heat behavior in superfluids, using a heat-mapping technique and radio frequencies.

flag MIT physicists have captured the first-ever images of the second sound, a wave-like heat behavior in superfluids created by cooling a cloud of atoms to extremely low temperatures. flag They used a heat-mapping technique and radio frequencies to observe how heat moves like a wave in this special state of matter and "sloshes" back and forth. flag This phenomenon, where heat flows like a wave, was predicted but not yet directly observed. flag With this discovery, scientists can now better understand how heat moves in superfluids and other related materials, including superconductors and neutron stars.

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