File:Feynman ratchet.png
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Feynman_ratchet.png (286 × 187 pixels, file size: 25 KB, MIME type: image/png)
Summary
| Description |
English: 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
Esperanto: Skema bildo de Brown-a kliko.
Español: Esquema del trinquete de Feynman.
Italiano: Figura schematica della ruota (ratchet) di Feynman.
Polski: Schemat zapadki.
Sicilianu: N'apparecchiu dû fisicu Feynman. |
| Source | Own work |
| Author | Bdkoivis |
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An other image of the same Feynman's machine. (image)
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Licensing
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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. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:38, 14 July 2007 | | 286 × 187 (25 KB) | wikimediacommons>Bdkoivis | {{Information |Description= |Source=self-made |Date= |Author= Bdkoivis }} |
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