File:Entropyandtemp.PNG

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Original file ‎(1,770 × 1,170 pixels, file size: 321 KB, MIME type: image/png)

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Summary[edit]

Description

Superposition of Entropy and Temperature Contour Maps (on a P-V diagram). Isotherms are shown as red lines, and adiabats are shown as black lines.

This image was made by AugPi.

(c) AugPi, 2004. Licensed to Wikimedia.
Date 30 December 2003 (original upload date)
Source Transferred from en.wikipedia to Commons.
Author AugPi at English Wikipedia
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Licensing[edit]

NOTE: "subject to disclaimers" below may not actually apply, this was tagged with {{GFDL-user-en}}, and after May 2007, en:Template:GFDL-self did not require disclaimers. Please check the image description page on the English Wikipedia (or, if it has been deleted, ask an English Wikipedia administrator). See Wikipedia:GFDL standardization for details.

AugPi at the English-language Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
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attribution share alike 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: AugPi
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This licensing tag was added to this file as part of the GFDL licensing update.

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Original upload log[edit]

The original description page was here. All following user names refer to en.wikipedia.
  • 2005-02-18 02:12 AugPi 483×483×8 (24794 bytes) Version of the image with the title removed.
  • 2003-12-30 17:59 AugPi 500×500×8 (27364 bytes) Superposition of Entropy and Temperature Contour Maps (on a P-V diagram).

File history

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Date/TimeThumbnailDimensionsUserComment
current04:05, 27 July 2019Thumbnail for version as of 04:05, 27 July 20191,770 × 1,170 (321 KB)PlasmaPerfi (talk | contribs)Reverted to version as of 18:38, 26 July 2019 (UTC)
18:43, 26 July 2019Thumbnail for version as of 18:43, 26 July 2019590 × 390 (86 KB)PlasmaPerfi (talk | contribs)Whoops, I didn't know Wikipedia didn't scale pictures. I lowered DPI a bit.
18:38, 26 July 2019Thumbnail for version as of 18:38, 26 July 20191,770 × 1,170 (321 KB)PlasmaPerfi (talk | contribs)I improved the look of the plot. I added labels, a legend and made the lines clearer. Here's the Python code I used: <code><nowiki> import matplotlib.pyplot as plt import sympy f = 3 gamma = (f + 2) / f from sympy.abc import p, V, C adiabat = sympy.Eq(p*V**gamma, C) isotherm = sympy.Eq(p*V, C) fig, ax = plt.subplots() for equation, color, label in [ (adiabat, "k", "Adiabat"), (isotherm, "r", "Isotherm"), ]: needs_labels = True for C_value in np.logspace(0, 3, 15): q...
19:12, 5 January 2007Thumbnail for version as of 19:12, 5 January 2007483 × 483 (24 KB)Kordas (talk | contribs){{Information |Description=Superposition of Entropy and Temperature Contour Maps (on a P-V diagram). Isotherms are shown as red lines, and adiabats are shown as black lines. This image was made by AugPi. <br> (c) AugPi, 2004. Licensed to Wikimedia. <br

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