• Question: how many things are faster than the speed of sound?

    Asked by roweblackmore to Ben, Clare, Ezzy, Mario, Sam on 13 Mar 2012.
    • Photo: Mario Campanelli

      Mario Campanelli answered on 12 Mar 2012:

      supersonic planes, even if there are no civialian ones left; then light of course, and a lot of elementary particles (cosmic rays, neutrinos, etc.)

    • Photo: Elizabeth Pearson

      Elizabeth Pearson answered on 13 Mar 2012:

      A lot of things. The end of a whip for instance. The crack is actually a little sonic boom as it breaks the sound barrier. Currently there are plans for a man to jump out of a balloon in the upper atmosphere to become the first person to break the sound barrier without the help of a car or plane.

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