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    1. > MIT researchers, after exploring a superfluid quantum gas, have shown that heat can travel in a wavelike manner called second sound, instead of spreading out and calming down.

      > The strange and incredible phenomenon known as “second sound” refers to a state where heat moves like a wave, not by diffusion like we’re used to. Instead of slowly spreading out, thermal energy pulses through a material in much the same way sound travels through air.

      > It’s not something you’d experience in everyday life, but in ultra-cold or highly ordered systems – like certain crystals or quantum fluids – second sound reveals a completely different side of how energy can move.

      > This wave is different from how temperature typically flows. Instead of dissipating steadily until it is fully spread out, the heat pulses like ripples on a pond. It’s like heat is speaking a language we rarely get to hear. The phenomenon known as quantum turbulence comes into play when normal and superfluid components move together at large scales, then lose lockstep at smaller scales.

      > The discovery opens the door to rethinking how energy is lost in quantum fluids, especially in systems where traditional viscosity doesn’t apply. If second sound ideas link to superconductors, we might improve next-gen energy lines. Some also dream of applying wave-based cooling in labs.

    2. augustwest30 on

      Is that like when there are pyrotechnics at a concert and you can immediately feel the heat in the back row? Then when the flames stop, it’s immediately back to normal temperature.

    3. Maybe bit off topic but I have always wondered what transports heat in vacuum. I understand radiation but without air it really doesn’t give me a good mental model for heat transfer in space.

    4. oracleofnonsense on

      *MIT researchers, after exploring a superfluid quantum gas, have shown that heat can travel in a wavelike manner called second sound, instead of spreading out and calming down.*

      ‚Second Sound‘ is just a terrible name for a „heat“ related phenomenon.

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