| telemeter |
A watch function that finds the distance of an object from the wearer by measuring how long it takes sound to travel that distance. Like a tachymeter, a telemeter consists of a stopwatch function and a special scale on the dial of a chronograph.
출처: www.orolus.com/watchglossary02.shtml
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| telemeter |
Combination chronograph and scale in kilometers or miles used to determine distance through sound. For example, to measure the distance where a lightning bolt struck, the chronograph hand is started when the bolt is seen and stopped when the thunder is heard. If the thunder is heard 10 seconds after the lightning is seen, the number in front of the chronograph hand will indicate about two miles or a little more than three kilometers.
출처: www.professionaljeweler.com/archives/articles/1999...
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