• Question: If you can increase the density of a magnet, can you decrease the density of a magnet (expand it)?

    Asked by ben to Giuditta on 19 Nov 2015.
    • Photo: Giuditta Perversi

      Giuditta Perversi answered on 19 Nov 2015:

      Really nice question! 😀
      It’s really uncommon for a material to have its density reduced under pressure, usually it’s the other way around!
      It can happen that if you can “block” a material in its high pressure atomic structure and then you cool it down, it will change shape again in something that it’s a bit less dense, though!

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