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The Royal Society: Science in the Making

Letter, from Giovanni Antonio Plana to Sir John Herschel, dated at Turin

Reference number: HS/13/414

Date: 24 March 1825

Description

Autograph letter signed by sender. Is helping another scientist bring to publication a work on triangulation in the Alps. Comments on John Frederick William Herschel's idea of suspending an extremely long plumb bob at a particular precipice in the Alps [Foucault pendulum?]. Giovanni Plana does not believe the results would warrant the expense. Comments on the floating collimator [see John Frederick William Herschel's 1825-1-14], noting that he does not find it very helpful.

Reference number
HS/13/414
Earliest possible date
24 March 1825
Page extent
4 pages
Format
Manuscript
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Creator names

Giovanni Antonio Amedeo Plana

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Giovanni Antonio Amedeo Plana

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Citation

Giovanni Antonio Amedeo Plana, Giovanni Antonio Amedeo Plana, Letter, from Giovanni Antonio Plana to Sir John Herschel, dated at Turin, 24 March 1825, HS/13/414, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/hs_13_414/letter-from-giovanni-antonio-plana-to-sir-john-herschel-dated-at-turin, accessed on 17 July 2026

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https://makingscience.royalsociety.org/items/hs_13_414/letter-from-giovanni-antonio-plana-to-sir-john-herschel-dated-at-turin

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  • Herschel Letters

    This collection of nearly 10,900 letters, drafts, copies and notes is the largest repository of scientific correspondence from and to Sir John Herschel, leading figure of Victorian science.

    Dates: 1807 - 1875

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