The Tachymeter and the Hyperbola

Metz, James (2021) The Tachymeter and the Hyperbola. At Right Angles. pp. 54-55. ISSN 2582-1873

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A tachymeter (ta kim‘ i ter) is a scale on certain chronograph watches that enables one to calculate speed, where “speed” is the amount of work done in one hour. The work can range from covering a certain distance to manufacturing a number of items. With x as the number of seconds/task and using the equation y = 3600/x, some convenient values of y are placed around the watch dial.

Item Type: Articles in APF Magazines
Authors: Metz, James
Document Language:
Uncontrolled Keywords: Rate, Speed, Work, Time
Subjects: Natural Sciences > Mathematics
Divisions: Azim Premji University > University Publications > At Right Angles
Full Text Status: Public
Publisher URL:

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