Search: Herschel, John in correspondent 
1860-1869::1868::09 in date 
letter in document-type 
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Herschel4360

From:
William Thomson
To:
Sir John Herschel
Date:
[24 September 1868]
Source of text:
RS:HS 17.351b
Summary:

Replies in detail to JH's objection to explaining the retardation of the earth's rotation as due to tidal friction, JH having urged that this effect should be analyzed in terms of momentum rather than of vis viva [kinetic energy], as WT maintained.

Contributor:
John Herschel Project

Herschel6641

From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[1 September 1868]
Source of text:
RS:HS 24.226
Summary:

Given up idea of translating Dante; comments on meteor shower report; suggests EC write an ode on poverty.

Contributor:
John Herschel Project

Herschel990

From:
Sir John Herschel
To:
John Herschel (son)
Date:
[14 September 1868]
Source of text:
JHS 6.47
Summary:

Is anxiously awaiting details of son John's observations of the solar eclipse in India; JH sends details of sunspots observed by JH on 18 Aug., and concludes with family news.

Contributor:
John Herschel Project
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