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Some of the earliest measuring devices used by humans were cubit rods, which were sticks of a standard length used for measuring dimensions, and balances, which were used to measure weight by comparing objects against known weights. These tools have been used by ancient civilizations such as the Egyptians and Mesopotamians.
Flour is measured in kg or t.
while measuring for voltage.
The technique of measuring minute changes in the volume of a part as a result of blood flow into or out of it.
Calculus is a mathematical technique: it is not a unit or tool for measurement.
The sun and its rise and set gave the very first time lines.
Spectrometry is a technique that involves making an analysis of energy and light. It is done by measuring the intensity of energy against the wavelength of energy.
Scaling is a technique used for measuring qualitative responses of respondents attitudes. Two types of scaling include direct measurement (Likert scale and semantic differential), and indirect measurement (projective techniques).
Surveying is the technique of measuring and mapping the Earth's surface to determine positions, distances, and angles.
P. K. Dhar has written: 'A radio frequency technique for measuring arc boundaries' 'A multi-ring radio frequency technique for measuring arc boundary variations both at high currents and close to current zero'
Gas Chromatography is an excellent technique for measuring naphthalene in water.
The earliest tool for measuring earthquakes was invented by Chinese astronomer Zhang Heng in 132 AD. He created the world's first seismoscope, a device that could detect the direction of an earthquake and the magnitude of its tremors.