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Original file (SVG file, nominally 600 × 480 pixels, file size: 15 KB)
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Summary
| Description | English: Black body curves of Planck for various temperatures and comparison with classical theory of Rayleigh-Jeans. Italiano: Confronto fra le curve del corpo nero della teoria di Planck e della teoria classica di Rayleigh-Jeans. |
| Date | |
| Source | Own work |
| Author | Darth Kule |
| Other versions |
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 | This SVG file contains embedded text that can be translated into your language, using any capable SVG editor, text editor or the SVG Translate tool. For more information see: About translating SVG files. |
This W3C-unspecified plot was created with Gnuplot.
gnuplot source
set term svgset termoption enhancedset encoding utf8set output 'Black_body.svg'unset keyset tics nomirror outset border 3set xrange [0:6]set yrange [0:15] set ylabel "Spectral radiance (kW • sr⁻¹ • m⁻² • nm⁻¹)"set xlabel "Wavelength (μm)"set label "5000 K" at 0.45,13.1set label "4000 K" at 0.6,4.55set label "3000 K" at 0.8,1.4set label "Classical theory (5000 K)" at 1.55,11set grid lc rgb "light-blue" # length unit is micrometrec=3e14 # speed of lighth=6.626e-22 # Planck constantk=1.38e-11 # Boltzmann constant # Planck curvesp1(x)=1e-6*2*h*c**2/(x**5*(exp(h*c/(x*k*3000))-1))p2(x)=1e-6*2*h*c**2/(x**5*(exp(h*c/(x*k*4000))-1))p3(x)=1e-6*2*h*c**2/(x**5*(exp(h*c/(x*k*5000))-1))p4(x)=1e-6*2*h*c**2/(x**5*(exp(h*c/(x*k*6000))-1)) # Rayleigh-Jeans curverj(x)=1e-6*2*c*k*5000/(x**4) plot p1(x) lw 2, p2(x) lw 2, p3(x) lw 2, p4(x) lw 2plot rj(x) lw 2 lc rgb "black"Licensing
| Public domainPublic domainfalsefalse |
 | I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:28, 7 April 2020 |  | 600 × 480 (15 KB) | GKFX | cleanup, move curves to foreground |
| 14:21, 6 March 2020 |  | 600 × 480 (33 KB) | Oz1sej | File uploaded using svgtranslate tool (https://tools.wmflabs.org/svgtranslate/). Added translation for da. | |
| 14:19, 6 March 2020 | 600 × 480 (33 KB) | Oz1sej | File uploaded using svgtranslate tool (https://tools.wmflabs.org/svgtranslate/). Added translation for da. | ||
| 17:06, 10 July 2013 | 600 × 480 (30 KB) | Cmglee | Add visible spectrum. | ||
| 00:18, 11 February 2013 | 600 × 480 (26 KB) | Vaughan Pratt | "Spectral radiance" more standard than "Intensity" in ylabel; replaced "arb units" by actual units (kW per sq m per steradian per nm) | ||
| 10:40, 18 September 2010 | 600 × 480 (25 KB) | UncleDouggie | Restore the μ symbol in the axis label that I lost when generating the recent update. | ||
| 10:03, 18 September 2010 | 600 × 480 (25 KB) | UncleDouggie | Added grid lines to match original PNG file, changed color of classical plot to black as required by existing text in some articles that use the PNG version. | ||
| 15:58, 5 June 2010 | 600 × 480 (11 KB) | Darth Kule | fix mistake | ||
| 13:09, 5 June 2010 | 600 × 480 (12 KB) | Darth Kule | {{Information |Description={{en|1=Black body curves of Planck for various temperatures and comparison with classical theory of Rayleigh-Jeans.}} {{it|1=Confronto fra le curve del corpo nero della teoria di Planck e della teoria classica di Rayleigh-Jeans. |
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