According to Guinness World Records, the largest collection of coffee pots belongs to Robert Dahl (Germany) and consists of 27,390 coffee pots as of 2 November 2012, in Rövershagen, Germany.
TACHOMETER
tachometer, tach
(noun) measuring instrument for indicating speed of rotation
Source: WordNet® 3.1
Etymology
Noun
tachometer (plural tachometers)
A device for measuring the revolutions per minute (RPMs) of a revolving shaft, as with the driveshaft of an automobile.
A device for measuring or indicating velocity or speed, as of blood, a river, a machine, etc.
Synonyms
• rev counter
Anagrams
• tachometre
Source: Wiktionary
Ta*chom"e*ter, n. Etym: [Gr. -meter: cf. F. tachomètre.]
Definition: An instrument for measuring the velocity, or indicating changes in the velocity, of a moving body or substance. Specifically: -- (a) An instrument for measuring the velocity of running water in a river or canal, consisting of a wheel with inclined vanes, which is turned by the current. The rotations of the wheel are recorded by clockwork. (b) An instrument for showing at any moment the speed of a revolving shaft, consisting of a delicate revolving conical pendulum which is driven by the shaft, and the action of which by change of speed moves a pointer which indicates the speed on a graduated dial. (c) (Physiol.) An instrument for measuring the velocity of the blood; a hæmatachometer.
Source: Webster’s Unabridged Dictionary 1913 Edition
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