Brief reflection on accuracy

Fish
    always accurately know where to move and when,
    and likewise
    birds have an accurate built-in time sense
    and orientation.

Humanity, however,
    lacking such instincts resorts to scientific
    research. Its nature is illustrated by the following
    occurrence.

A certain soldier
    had to fire a cannon at six o’clock sharp every evening.
    Being a soldier he did so. When his accuracy was
    investigated he explained:

I go by
    the absolutely accurate chronometer in the window
    of the clockmaker down in the city. Every day at seventeen
    forty-five I set my watch by it and
    climb the hill where my cannon stands ready.
    At seventeen fifty-nine precisely I step up to the cannon
    and at eighteen hours sharp I fire.

And it was clear
    that this method of firing was absolutely accurate.
    All that was left was to check that chronometer. So
    the clockmaker down in the city was questioned about
    his instrument’s accuracy.

Oh, said the clockmaker,
    this is one of the most accurate instruments ever. Just imagine,
    for many years now a cannon has been fired at six o’clock sharp.
    And every day I look at this chronometer
    and always it shows exactly six.

Chronometers tick and cannon boom.

Copyright Credit: Miroslav Holub, “Brief reflection on accuracy” from Poems Before & After.  Reprinted with the permission of Bloodaxe Books Ltd., www.bloodaxebooks.com.
Source: Poems Before and After (Bloodaxe Books, 2006)