Ways in which length, distance or range can be measured
"Range estimation" redirects here. Not to be confused with Interval estimation.
For broader coverage of this topic, see Dimensional measurement.
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Length measurement, distance measurement, or range measurement (ranging) refers to the many ways in which length, distance, or range can be measured. The most commonly used approaches are the rulers, followed by transit-time methods and the interferometer methods based upon the speed of light.
For objects such as crystals and diffraction gratings, diffraction is used with X-rays and electron beams. Measurement techniques for three-dimensional structures very small in every dimension use specialized instruments such as ion microscopy coupled with intensive computer modeling.
and 19 Related for: Length measurement information
Lengthmeasurement, distance measurement, or range measurement (ranging) refers to the many ways in which length, distance, or range can be measured. The...
is a quantity with dimension distance. In most systems of measurement a base unit for length is chosen, from which all other units are derived. In the...
Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events. In other words, measurement...
Jean Picard also measured the length of a seconds pendulum at Paris Observatory and proposed this unit of measurement to be called the astronomical radius...
times the definite predetermined length called "metre". The definition, agreement, and practical use of units of measurement have played a crucial role in...
measurement of the river length between source and mouth, that determine the precise meaning of "river length". As a result, the lengthmeasurements of...
Measures to create standards for lengthmeasurements in 1196, and the 1215 Magna Carta included a section for the measurement of wine and beer. Modern metrology...
length in the International System of Units (SI), equal to one thousand metres (kilo- being the SI prefix for 1000). It is the preferred measurement unit...
together to achieve a specific tolerance or measurement. For example, "five tenths," is typically a measurement or tolerance of five ten-thousandths of an...
equal due to time dilation, resulting in different lengths too. The deviation between the measurements in all inertial frames is given by the formulas for...
studies have been performed on the erect length of the adult penis. Studies that have relied on self-measurement, including those from Internet surveys...
portion of the hypural plate. This measurement excludes the length of the caudal (tail) fin. Total length (TL) is the length of a fish measured from the tip...
A unit of length refers to any arbitrarily chosen and accepted reference standard for measurement of length. The most common units in modern use are the...
antiquity, systems of measurement were defined locally: the different units might be defined independently according to the length of a king's thumb or...
coastline lengths, this is the source of the land area used to calculate the "coast/area ratio" for both TWF and WRI (see below) coastline measurement. This...
yard (symbol: yd) is an English unit of length in both the British imperial and US customary systems of measurement equalling 3 feet or 36 inches. Since...
fundamentally different from the measurement of other, simpler edges. It is possible, for example, to accurately measure the length of a straight, idealized metal...
(symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement. It is equal to 1/36 yard or 1/12...
is, for all practical purposes, a waterline measurement. In a ship with raked stems, naturally that length changes as the draught of the ship changes,...
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