• Question: What is quantum foam?

    Asked by livluvsliquids to Adrian, Gaia, Jim, Scott, Vicky on 10 Mar 2016.
    • Photo: Adrian Buzatu

      Adrian Buzatu answered on 10 Mar 2016:

      Pairs of particles of matter and antimatter appearing from the vacuum, then colliding back, and giving their energy back to the vacuum, where it was borrowed from anyway.

    • Photo: Scott Lawrie

      Scott Lawrie answered on 10 Mar 2016:

      Particles can randomly appear anywhere, as long as they disappear again quickly enough! They’re always popping into and out of existence, just like the foamy bubbles in your bath – hence the name!

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