"MIT Researchers Capture Heat Behaving Like Sound in Superfluids"

TL;DR
Physicists at MIT have captured direct images of a phenomenon known as "second sound," where heat behaves like a wave, bouncing back and forth like sound, in a superfluid state of matter. The images show how heat can move independently of the material's physical matter, creating oscillations similar to sound waves. This discovery could have implications for understanding heat transfer in exotic states of matter.
- Heat behaves like sound in superfluids, MIT team shows Interesting Engineering
- MIT physicists capture the first sounds of heat “sloshing” in a superfluid MIT News
- Thermography of the superfluid transition in a strongly interacting Fermi gas Science
- MIT Researchers Capture First Direct Images of Elusive 'Second Sound' in Superfluid BNN Breaking
- Scientists reveal heat can behave like sound in superfluid WION
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