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File:Feynman ratchet.png

From Wikipedia, the free encyclopedia

Feynman_ratchet.png ‎(286 × 187 pixels, file size: 25 KB, MIME type: image/png)

Summary

Description
Schematic figure of a Brownian ratchet (Feynman-Smoluchowski ratchet), a simple hypothetical mechanism used in a thought experiment by Marian Smoluchowski and Nobel laureate Richard Feynman to demonstrate the laws of thermodynamics.
The device is a tiny paddlewheel attached to a ratchet. It appears to be an example of a Maxwell's Demon, able to produce useful work from the random thermal motion of molecules at a constant temperature in violation of the Second Law of Thermodynamics. Feynman and others showed why it cannot actually produce work if T1 = T2
Source Own work
Author Bdkoivis

135sw7y uipo[ eryasfs ayis naisl s akips

An other image of the same Feynman's machine. (image)

This technology image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with {{vector version available|new image name}}.


It is recommended to name the SVG file “Feynman ratchet.svg”—then the template Vector version available (or Vva) does not need the new image name parameter.

Licensing

Public domain This work has been released into the public domain by its author, I, Bdkoivis. This applies worldwide.
In some countries this may not be legally possible; if so:
I, Bdkoivis grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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Date/TimeThumbnailDimensionsUserComment
current16:38, 14 July 2007Thumbnail for version as of 16:38, 14 July 2007286 × 187 (25 KB)Bdkoivis{{Information |Description= |Source=self-made |Date= |Author= Bdkoivis }}
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Retrieved from "https://en.wikipedia.org/wiki/File:Feynman_ratchet.png"
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