File:Block and tackle (PSF).png

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Original file (1,968 × 2,152 pixels, file size: 242 KB, MIME type: image/png)

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Description Line art drawing of a Block and tackle system, with 2:1 mechanical advantage, rigged to disadvantage (ie the hauling part changes direction in but does not affect the movement of the block from where it emerges).
Source Archives of Pearson Scott Foresman, donated to the Wikimedia Foundation
Author Pearson Scott Foresman
Permission
(Reusing this file)
Public domain This work has been released into the public domain by its author, Pearson Scott Foresman. This applies worldwide.
In some countries this may not be legally possible; if so:
Pearson Scott Foresman 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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ea90a318fd5e4415a5d30d6798f9ab632d34468a

determination method or standard: SHA-1

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Date/TimeThumbnailDimensionsUserComment
current22:32, 29 November 2007Thumbnail for version as of 22:32, 29 November 20071,968 × 2,152 (242 KB)wikimediacommons>Editor at Large{{Information |Description=Line art drawing of a w:Block and tackle system |Source=Pearson Scott Foresman, donated to the Wikimedia Foundation |Date= |Author=[[:en:Pearson Scott Foresman|Pea

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