Image:Cavendish Experiment.png

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[edit] Summary

Description

Drawing of torsion balance apparatus used by Henry Cavendish in the 'Cavendish Experiment' to measure the gravitational constant in 1798. This is a vertical section through the apparatus, including the building that housed it. Copy of Figure 1 from his 1798 paper 'Experiments to determine the Density of the Earth' published in Philosophical Transactions of the Royal Society of London, (part II) 88 p.469-526 (21 June 1798). Alterations: removed frame and caption, compensated for shear distortion caused by scanning book, converted to PNG.
Source

Cavendish,H.(1798), 'Experiments to determine the Density of the Earth' in McKenzie, A.S. ed. Scientific Memoirs Vol.9: The Laws of Gravitation, American Book Co. 1900, p.62 on Google Books.
Date

June 21, 1798
Author

Henry Cavendish
Permission
(Reusing this image)

Public domain - author died in 1810.

[edit] Licensing

Public domain This image (or other media file) is in the public domain because its copyright has expired.

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Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement that rule of the shorter term.

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File history

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Date/TimeDimensionsUserComment
current19:12, 25 August 2007699×524 (26 KB)Chetvorno ({{Information |Description=Drawing of torsion balance apparatus used by Henry Cavendish to measure the gravitational constant in 1798. This is a vertical section through the apparatus, including the building that contained it. Copy of Figure 1 in his 17)
01:50, 25 August 2007709×533 (27 KB)Chetvorno ({{Information |Description=Drawing of torsion balance apparatus used by Henry Cavendish |Source=http://books.google.com/books?id=zrkEAAAAMAAJ&pg=PA62 Cavendish,H.(1798), 'Experiments to determine the Density of the Earth' in McKenzie, A.S. ed. 'Scientific)
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