When I see track athletics on TV, for example at the Olympics, I see a gun is used to start a race. Why is a gun is used instead of, for example, a whistle?

  • Why do you think a whistle is preferable to a gun?
    – Philip Kendall
    May 4 '17 at 18:05
  • 1
    I don't think, I see. My ex sport teacher used a whistle.
    – lazyboy
    May 4 '17 at 18:07
  • 3
    Are you asking more about the relative advantages of the "guns" used in current Olympics (which aren't guns now at all), or more about the traditions of why guns were historically used rather than something else?
    – user11569
    May 4 '17 at 19:46
  • I aske About the traditions of why guns were historically used rather than something else.
    – lazyboy
    May 5 '17 at 18:31

A gun provides a single, relatively discrete sound at a relatively constant volume throughout a meeting. The volume of a whistle will vary from blow to blow, depending on how it's blown. Also, a whistle is not a sharp sound; it's harder to pinpoint the exact moment of race starting, which is both challenging to the athletes and also difficult for the race timers in events where finish times are sliced to thousandths of a second. (Results are listed to hundredths with automatic timing, but the systems can time to thousandths; the extra precision is used to separate ties.)

This last is perhaps more important: in the days of Fully Automatic Timing (FAT) the starting signal needs to trigger the timing system. A specially configured starter's pistol can do that, but there have also been systems using a different audible signal, e.g. a loud handclap.

  • if just about "relatively discrete sound at a relatively constant volume" so theoretically one can use artificial / electrical whistle ?
    – lazyboy
    May 5 '17 at 18:33
  • 1
    I think we might have slightly different concepts of what a "whistle" should sound like. If you're thinking of something like what an official in a football game would blow - "TWEEEET" - the problem is that we really need just the "T" and any extended "EE" is ambiguous to the system. But yes, notice the various noises used in starting swim races.
    – pjmorse
    May 6 '17 at 2:23

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