Kathetometer is a scientific instrument used for measuring the vertical distance between two points. Its spelling can be a bit tricky - the "k" is pronounced as /k/ and the "th" is pronounced as /θ/, the same sound as the "th" in "thick." This is followed by the "e" which is pronounced as /ɛ/ as in "bet." The next syllable, "to," is pronounced as /təʊ/ and the final syllable "meter" is pronounced as /ˈmiːtə(r)/. Together, it's pronounced as /kəˌθiːtɒˈmiːtə/.
A kathetometer is a scientific instrument used for measuring vertical distances or heights with great precision. It consists of a rigid graduated scale or a vertical rod with a vernier attached to it, enabling accurate readings to be taken.
Typically, a kathetometer consists of a tripod base, upon which the measuring device is mounted. The vertical rod, which is often made of metal and marked with measured increments, extends upward from the base. The rod usually has a vernier scale, which allows the instrument operator to read measurements with a higher degree of accuracy.
To use a kathetometer, the instrument is positioned in a way that aligns the vertical rod with the height being measured. The operator then looks through an eyepiece located at the top of the rod and adjusts the position until the target object is visible. By carefully examining the scale and vernier, the vertical distance can be determined.
Kathetometers are commonly used in surveying, engineering, and other scientific fields where precise measurements of vertical distances are crucial. Their accuracy is highly valued, as they can provide readings with a precision of up to 0.01 millimeters. This makes kathetometers particularly useful for tasks such as leveling, tracking changes in ground elevation, or gauging height differentials between objects.
An instr. for measuring small differences of perpendicular height.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "kathetometer" is derived from the combination of two Greek words: "kathetos" (καθετος) and "metron" (μετρον).
"Kathetos" means "vertical" or "perpendicular" in Greek, and it originates from the word "kathetein" (καθετειν), which means "to let down", "cause to reach", or "set upright". The word "kathetos" itself comes from the verb "kata" (κατα), which denotes motion downward or opposition.
"Metron", on the other hand, means "a measure" in Greek. Its root word, "metrein" (μετρειν), refers to the act of measuring or reckoning.