Logarithmic scales of measurement | Units of measurement

Neper

The neper (symbol: Np) is a logarithmic unit for ratios of measurements of physical field and power quantities, such as gain and loss of electronic signals. The unit's name is derived from the name of John Napier, the inventor of logarithms. As is the case for the decibel and bel, the neper is a unit defined in the international standard ISO 80000. It is not part of the International System of Units (SI), but is accepted for use alongside the SI. (Wikipedia).

Neper
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What are Neutrinos?

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From playlist Science Unplugged: Neutrinos

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The Nerdabout vlog - Cool Nerd

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From playlist The Nerdabout vlogs

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From playlist SELF

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NASA’s New Planet Tracker, NEID

A new NASA-funded planet-hunting instrument has been installed on the WIYN telescope, on Arizona’s Kitt Peak. NEID (pronounced “NOO-id,” rhymes with fluid) is a spectrometer that is one of the first instruments of its kind with the precision to detect small, terrestrial planets around near

From playlist Exoplanets

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Neanderthals 101 | National Geographic

Who were the neanderthals? Do humans really share some of their DNA? Learn facts about Neanderthal man, the traits and tools of Homo neanderthalensis, and how the species fits into our evolution story. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geograph

From playlist News | National Geographic

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Why I Love Neutrinos

Why I Love Neutrinos is a series spotlighting those mysterious, abundant, ghostly particles that are all around us. This installment features a compilation of international scientists. For more information on neutrinos, visit the Fermilab website at http://www.fnal.gov.

From playlist Why I Love Neutrinos

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What is a Neutrino?

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From playlist MinutePhysics

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Neutrinos and the 2015 Nobel Prize in Physics - Sixty Symbols

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From playlist Nobel Prize Videos - Sixty Symbols

Related pages

Decibel | Coherence (units of measurement) | Power, root-power, and field quantities | Ratio | Natural logarithm | Gain (electronics) | Logarithmic scale | E (mathematical constant) | Logarithm | Nat (unit)