MIT News
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In rare states of matter, heat can behave as a wave, moving back and forth somewhat like a sound wave that bounces from one end of a room to the other.
This wave-like heat is what physicists call “second sound” Signs of second sound have b one observed in only a handful of materials.
Images capture the pure movement of hea second ependent of a mate second physical matter.
The lithium-6 fermions resonate at differe MIT radio frequencies depending on their temper second
When the clo first at warmer temperatures, and carries more normal liquid, it resonates at a higher frequency.
Regions in the cloud that are colder resonate at a lower frequency.
The experiments mark the first time that scientists have been able to directly image the pure motion of heat in a superfluid quan one half Richard Fletcher search Laboratory of Electronics the MIT Department of Physics NSF Physics Frontier Center Martin Zwierlein __NxlGi">MIT second IT the Vannevar Bush Faculty Fellowship the Air Force Office of Scientific Research NSF the National Science Foundation Zwierleintoday Science ed_highLightText__NxlGi">second first Zwierlein first a million ss="summaryFeed_highLightText__NxlGi">zero second Zwierlein xt__NxlGi">Zwierlein Zwierlein Second
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