File:Palmer's pocket scale.jpg

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Original file ‎(2,160 × 3,520 pixels, file size: 1.97 MB, MIME type: image/jpeg)

Captions

Captions

Palmer's Pocket Scale, a circular slide rule created by Aaron Palmer and published in 1844.

Summary[edit]

Description
English: Palmer's Pocket Scale, a circular slide rule created by Aaron Palmer and published in New York in 1844. This is a small-scale version of the slightly earlier "Palmer's Computing Scale", which is believed to be the first circular slide rule published in the United States.
Date
Source Own work
Author Staecker

For more information see:

  • Bobby Feazel, "Palmer's Computing Scale", Journal of the Oughtred Society Vol 3 No 1, p 9-17, 1994.
  • Bobby Feazel, "Palmer's Computing Scale - Revisited", Journal of the Oughtred Society Vol 4 No 1, p 5-8, 1995.
  • And a short video about Palmer's Pocket Scale: https://www.youtube.com/watch?v=48qFvZ21qvQ

Licensing[edit]

I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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current22:48, 26 August 2022Thumbnail for version as of 22:48, 26 August 20222,160 × 3,520 (1.97 MB)Staecker (talk | contribs)Uploaded own work with UploadWizard

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