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    Mar 31, 2014

    This Is What Happens When You Boil And Freeze A Liquid At The Same Time

    Yes, it's real.

    This video shows what happens when you get the temperature and pressure of a liquid just right...

    View this video on YouTube

    youtube.com

    So that at first it freezes.

    Tom Enstone / youtube.com

    Then it boils.

    Tom Enstone / youtube.com

    Then... it does both at the same time?

    Tom Enstone / youtube.com

    This (unspecified) liquid appears to have reached its "triple point", where it exists as a solid, a liquid and a gas at the same time.

    Liquids start behaving strangely around this temperature and pressure. For example, below the triple point pressure, when ice is heated it turns directly into water vapour without first becoming a liquid.

    Which is pretty neat.

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