• Question: why do flies buzz ?

    Asked by lafonda to Mike, Pip, Tim, Tom on 4 Jul 2012.
    • Photo: Tim Stephens

      Tim Stephens answered on 4 Jul 2012:

      Their wings have to move really fast to let them fly.
      The sound comes from the fast moving air – remember that sound is just vibrations in the air.

    • Photo: Tom Lister

      Tom Lister answered on 4 Jul 2012:

      Covered well by Tim – mosquitos have little fast moving wings (high frequency – high pitch) compared to bumble bees, whose wings move more slowly (lower frequency/pitch).

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