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What affects intensity?-- User:68.12.168.125 00:28, 14 November 2005 (UTC)
The formula seems to be wrong. I found the formula in the textbook Introduction to Electrodynamics from David J. Griffiths. I don't have the time to find the error in the deduction, though. — Preceding unsigned comment added by 141.84.219.200 ( talk) 15:45, 13 August 2013 (UTC)
My advice is not to use symbols like n, if you can't explain them (or when there is no source). Even in this Talk nobody explains what n is. Very disappointing!— Preceding unsigned comment added by Koitus~nlwiki ( talk • contribs) 14:11, 15 June 2020 (UTC)
Is "strength" being used in a particular sense here? Signal strength? Wikipedia policy discourages linking directly to a disambiguation page, unless it's the amorphousness of the term that's under discussion. I've been re-pointing links away from the disambiguation page strength, but I can't figure out what precisely was meant in this article, and thus which article I should re-link the word to. Would someone with expertise help, please? Sanguinity 19:45, 24 August 2006 (UTC)
I have cleaned up the lead section to make the new reader understand the particular sense of intensity that is being used here. Everyday analogies have been expanded, and truncated statements and repetition removed. Maths section re-formatted to make more readable. Dougsim ( talk) 09:06, 27 December 2012 (UTC)
Neither the cited Merriam Webster entry for 'intensity', nor the relevant yet uncited OED Online entry, supports the current opening sentence in the Wikipedia article, which states currently:
'In physics, intensity is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.[1]'
The Merriam Webster entry for 'intensity' (2) states:
2: the magnitude of a quantity (such as force or energy) per unit (as of area, charge, mass, or time)
https://www.merriam-webster.com/dictionary/intensity
The OED entry for 'intensity' 2.a. states:
2.a. The degree or amount of some quality, condition, etc.; force, strength, energy; degree of some characteristic quality, as brightness, etc.; esp. in Physics, as a measurable quantity.
1794 J. Hutton Diss. Philos. Light 291 The light of greatest intensity, which is supposed to be white.
1794 R. Kirwan Elements Mineral. (ed. 2) I. 26 Denoting the degrees of intensity of some particular qualities by figures.
1831 D. Brewster Treat. Optics xxii. 200 To compare the polarising intensitiesof different crystals.
1881 J. C. Maxwell Treat. Electr. & Magnetism (ed. 2) I. 168 The force on a small charged body is proportional to its own charge, and the force per unit of charge is called the Intensity of the force.
"intensity, n." OED Online, Oxford University Press, March 2019, www.oed.com/view/Entry/97479. Accessed 3 April 2019.
http://www.oed.com/view/Entry/97479 193.116.99.226 ( talk) 19:38, 3 April 2019 (UTC)
![]() | This ![]() It is of interest to the following WikiProjects: | ||||||||||
|
What affects intensity?-- User:68.12.168.125 00:28, 14 November 2005 (UTC)
The formula seems to be wrong. I found the formula in the textbook Introduction to Electrodynamics from David J. Griffiths. I don't have the time to find the error in the deduction, though. — Preceding unsigned comment added by 141.84.219.200 ( talk) 15:45, 13 August 2013 (UTC)
My advice is not to use symbols like n, if you can't explain them (or when there is no source). Even in this Talk nobody explains what n is. Very disappointing!— Preceding unsigned comment added by Koitus~nlwiki ( talk • contribs) 14:11, 15 June 2020 (UTC)
Is "strength" being used in a particular sense here? Signal strength? Wikipedia policy discourages linking directly to a disambiguation page, unless it's the amorphousness of the term that's under discussion. I've been re-pointing links away from the disambiguation page strength, but I can't figure out what precisely was meant in this article, and thus which article I should re-link the word to. Would someone with expertise help, please? Sanguinity 19:45, 24 August 2006 (UTC)
I have cleaned up the lead section to make the new reader understand the particular sense of intensity that is being used here. Everyday analogies have been expanded, and truncated statements and repetition removed. Maths section re-formatted to make more readable. Dougsim ( talk) 09:06, 27 December 2012 (UTC)
Neither the cited Merriam Webster entry for 'intensity', nor the relevant yet uncited OED Online entry, supports the current opening sentence in the Wikipedia article, which states currently:
'In physics, intensity is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.[1]'
The Merriam Webster entry for 'intensity' (2) states:
2: the magnitude of a quantity (such as force or energy) per unit (as of area, charge, mass, or time)
https://www.merriam-webster.com/dictionary/intensity
The OED entry for 'intensity' 2.a. states:
2.a. The degree or amount of some quality, condition, etc.; force, strength, energy; degree of some characteristic quality, as brightness, etc.; esp. in Physics, as a measurable quantity.
1794 J. Hutton Diss. Philos. Light 291 The light of greatest intensity, which is supposed to be white.
1794 R. Kirwan Elements Mineral. (ed. 2) I. 26 Denoting the degrees of intensity of some particular qualities by figures.
1831 D. Brewster Treat. Optics xxii. 200 To compare the polarising intensitiesof different crystals.
1881 J. C. Maxwell Treat. Electr. & Magnetism (ed. 2) I. 168 The force on a small charged body is proportional to its own charge, and the force per unit of charge is called the Intensity of the force.
"intensity, n." OED Online, Oxford University Press, March 2019, www.oed.com/view/Entry/97479. Accessed 3 April 2019.
http://www.oed.com/view/Entry/97479 193.116.99.226 ( talk) 19:38, 3 April 2019 (UTC)