Erg: Difference between revisions
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[[Category:Done 2015- | [[Category:Done 2015-09-05]] | ||
[[category: Units]] | [[category: Units]] | ||
<onlyinclude>An '''erg''' is a unit for [[work|energy]], equal to 1 g·cm<sup>2</sup>/s<sup>2</sup>, which can be shown to be equal to exactly 10<sup>-7</sup> [[joules]].<ref><m> \frac{1 g \times cm^2}{1 s^2}\times\frac{1kg}{1000g}\times \frac{1m^2}{10000cm^2}</m><m>=10^-^7 J </m></ref></onlyinclude> The erg is a miniscule amount of energy, often compared to the work it takes for a mosquito to take off.<ref>Martin Mobberley. (2009). ''Cataclysmic Cosmic Events and How to Observe Them'' [Online]. Available: https://books.google.ca/books?id=-WQCJOkVfsUC&pg=PP10&lpg=PP10&dq=erg+mosquito+taking+off&source=bl&ots=W--mys0Kub&sig=qpJzXZJLWzfeAOnQ-yshwU9bDWo&hl=en&sa=X&ei=d8nzVNWJPNC1oQSjyYGQCA&ved=0CCMQ6AEwAQ#v=onepage&q=erg%20mosquito%20taking%20off&f=false</ref> | <onlyinclude>An '''erg''' is a [[units|unit]] for [[work|energy]], equal to 1 g·cm<sup>2</sup>/s<sup>2</sup>, which can be shown to be equal to exactly 10<sup>-7</sup> [[joules]].<ref><m> \frac{1 g \times cm^2}{1 s^2}\times\frac{1kg}{1000g}\times \frac{1m^2}{10000cm^2}</m><m>=10^-^7 J </m></ref></onlyinclude> The erg is a miniscule amount of energy, often compared to the work it takes for a mosquito to take off.<ref>Martin Mobberley. (2009). ''Cataclysmic Cosmic Events and How to Observe Them'' [Online]. Available: https://books.google.ca/books?id=-WQCJOkVfsUC&pg=PP10&lpg=PP10&dq=erg+mosquito+taking+off&source=bl&ots=W--mys0Kub&sig=qpJzXZJLWzfeAOnQ-yshwU9bDWo&hl=en&sa=X&ei=d8nzVNWJPNC1oQSjyYGQCA&ved=0CCMQ6AEwAQ#v=onepage&q=erg%20mosquito%20taking%20off&f=false</ref> | ||
==Conversions== | ==Conversions== | ||
Revision as of 19:46, 28 August 2015
An erg is a unit for energy, equal to 1 g·cm2/s2, which can be shown to be equal to exactly 10-7 joules.[1] The erg is a miniscule amount of energy, often compared to the work it takes for a mosquito to take off.[2]
Conversions
References
- ↑
- ↑ Martin Mobberley. (2009). Cataclysmic Cosmic Events and How to Observe Them [Online]. Available: https://books.google.ca/books?id=-WQCJOkVfsUC&pg=PP10&lpg=PP10&dq=erg+mosquito+taking+off&source=bl&ots=W--mys0Kub&sig=qpJzXZJLWzfeAOnQ-yshwU9bDWo&hl=en&sa=X&ei=d8nzVNWJPNC1oQSjyYGQCA&ved=0CCMQ6AEwAQ#v=onepage&q=erg%20mosquito%20taking%20off&f=false