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An erg is the amount of work done by a force of one dyne exerted for a distance of one centimetre. In the CGS base units, it is equal to one gram centimetre-squared per second-squared (g?cm2/s2). It is thus equal to 10-7joules or 100 nanojoules (nJ) in SI units. An erg is approximately the amount of work done (or energy consumed) by one common house fly performing one "push up", the leg-bending dip that brings its mouth to the surface on which it stands and back up.[2]
1 erg = =
1 erg = = =
1 erg = =
1 erg = =
History
In 1864, Rudolf Clausius proposed the Greek word (ergon) for the unit of energy, work and heat.[3][4] In 1873, a committee of the British Association for the Advancement of Science, including British physicists James Clerk Maxwell and William Thomson recommended the general adoption of the centimetre, the gramme, and the second as fundamental units (C.G.S. System of Units). To distinguish derived units, they recommended using the prefix "C.G.S. unit of ..." and requested that the word erg or ergon be strictly limited to refer to the C.G.S. unit of energy.[5]
^ abJerrard, H. G.; McNeill, D. B. (1993) [1963]. A Dictionary of Scientific Units - Including dimensionless numbers and scales (6 ed.). London: Chapman and Hall. p. 100. ISBN0412467208. OCLC803100353. OL1351307M.