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Foe (unit of energy)

 

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Foe (unit of energy)



 
 
A foe is a unit of energy
Energy

In physics, energy is a scalar physical quantity that describes the amount of Work_ that can be performed by a force. Energy is an attribute of objects and systems that is subject to a conservation law....
 equal to 1044 joule
Joule

The joule is the SI derived unit of energy in the International System of Units. It is defined as:One joule is the amount of energy required to perform the following actions:...
s or 1051 erg
Erg

An erg is the unit of energy and mechanical work in the Centimetre gram second system of units system of Units of measurements, symbol "erg"....
s, used to measure the large amount of energy produced by a supernova
Supernova

A supernova is a Astronomy#Stellar astronomy explosion. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months....
.

The word is an acronym derived from the phrase [ten to the power
Exponentiation

Exponentiation is a mathematics operation , written 'an', involving two numbers, the base a and the exponent n....
] fifty-one ergs. It was coined by Gerald Brown of Stony Brook University in his work with Hans Bethe
Hans Bethe

Hans Albrecht Bethe was a Germany-United States physicist, and Nobel laureate in Nobel Prize in Physics for his work on the theory of stellar nucleosynthesis....
, because "it came up often enough in our work".

This unit of measure is convenient because a supernova typically releases about one foe of observable energy in a very short period (which can be measured in seconds).






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A foe is a unit of energy
Energy

In physics, energy is a scalar physical quantity that describes the amount of Work_ that can be performed by a force. Energy is an attribute of objects and systems that is subject to a conservation law....
 equal to 1044 joule
Joule

The joule is the SI derived unit of energy in the International System of Units. It is defined as:One joule is the amount of energy required to perform the following actions:...
s or 1051 erg
Erg

An erg is the unit of energy and mechanical work in the Centimetre gram second system of units system of Units of measurements, symbol "erg"....
s, used to measure the large amount of energy produced by a supernova
Supernova

A supernova is a Astronomy#Stellar astronomy explosion. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months....
.

The word is an acronym derived from the phrase [ten to the power
Exponentiation

Exponentiation is a mathematics operation , written 'an', involving two numbers, the base a and the exponent n....
] fifty-one ergs. It was coined by Gerald Brown of Stony Brook University in his work with Hans Bethe
Hans Bethe

Hans Albrecht Bethe was a Germany-United States physicist, and Nobel laureate in Nobel Prize in Physics for his work on the theory of stellar nucleosynthesis....
, because "it came up often enough in our work".

This unit of measure is convenient because a supernova typically releases about one foe of observable energy in a very short period (which can be measured in seconds). In comparison, if the Sun
Sun

The Sun , a G V star, is the star at the center of the Solar System. The Earth and other matter orbit the Sun, which by itself accounts for about 98.6% of the Solar System's mass....
 had its current luminosity throughout its entire lifetime, it would produce 3.827 W
WATT

WATT is a radio station broadcasting a News radio-Talk radio-Sports radio format. Licensed to Cadillac, Michigan, it first began broadcasting in 1945....
 × 1010 years ˜ 1.2 foe.