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posted by Fnord666 on Sunday March 22 2020, @09:23AM   Printer-friendly
from the phonon-superhighway dept.

Arthur T Knackerbracket has found the following story:

Getting rid of heat is one of the central challenges with modern technology. It doesn’t matter whether the technology is a high-end server CPU or some pathetically anemic processor in a no-brand set-top box, someone has had to think about thermal management. One of the central issues in thermal management is thermal resistance, a material's tendency to limit the flow of heat. The thicker a material, the larger the temperature gradient required to achieve the same amount of cooling because the thermal resistance increases with thickness.

Except when it doesn’t; if the heat is carried by ballistic phonons, then thermal resistance stays constant.


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  • (Score: 2, Funny) by jurov on Sunday March 22 2020, @11:38AM (3 children)

    by jurov (6250) on Sunday March 22 2020, @11:38AM (#974104)

    >> Heat diffuses like the stain growing up the wall of a teenager’s bedroom.

    ...what?

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  • (Score: 0) by Anonymous Coward on Sunday March 22 2020, @01:15PM (2 children)

    by Anonymous Coward on Sunday March 22 2020, @01:15PM (#974117)

    Chris Lee is the physics explainer man at Ars Technica, but he seems to be channeling the spirit of Peter Bright.

    • (Score: 2) by c0lo on Sunday March 22 2020, @02:07PM

      by c0lo (156) Subscriber Badge on Sunday March 22 2020, @02:07PM (#974128) Journal

      ...to be channeling the spirit of Peter Bright.

      I don't get it. You mean that stain on the wall is actually Peter Bright's?

      --
      https://www.youtube.com/watch?v=aoFiw2jMy-0 https://soylentnews.org/~MichaelDavidCrawford
    • (Score: 0) by Anonymous Coward on Sunday March 22 2020, @07:36PM

      by Anonymous Coward on Sunday March 22 2020, @07:36PM (#974214)

      ArsTechnica got really weird a long, long time ago.