Search: Herschel, John in correspondent 
Hamilton, William Rowan in correspondent 
Herschel, John in addressee 
letter in document-type 
1840-1849 in date 
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Showing 112 of 12 items

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[18 January 1840]
Source of text:
unknown
Summary:

Confides that the past year has been 'a sombre one ... but not unhappy.'

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[19 March 1841]
Source of text:
unknown
Summary:

Considering motion as a 'successive excitement of powers.'

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[30 December 1842]
Source of text:
unknown
Summary:

Thanks JH for JH's translation of Friederich Schiller's poem 'The Walk.'

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[12 December 1843]
Source of text:
unknown
Summary:

Jokes about WH's recent 'astronomical insignificance.'

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[27 May 1846]
Source of text:
TxU:H/M-0934; Reel 1083
Summary:

Sends copies of three letters by G. B. Airy on proposed railway through Greenwich Park. Asks JH's opinion on possible effects on observatory.

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[23 November 1846]
Source of text:
unknown
Summary:

Elated that WH's account of the generation of an ellipsoid is an original result.

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[1 April 1847]
Source of text:
unknown
Summary:

Sends some results concerning undisturbed parabolic motion. Laments the Irish famine.

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[26 April 1847]
Source of text:
unknown
Summary:

Sends some new theorems concerning undisturbed parabolic motion; believes that much remains to be discovered in this field.

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[1 September 1847]
Source of text:
unknown
Summary:

Wants WH's quaternion mathematics to be challenged; also worries that quaternions will become merely 'a private and personal skill' instead of a method that can be taught.

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[2 October 1847]
Source of text:
unknown
Summary:

The equatorial on the Dublin Observatory dome needs improvement. In the last fifty-two months, WH has seen three new planets: Neptune, Iris, and Flora.

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[23 October 1847]
Source of text:
unknown
Summary:

WH notes that quaternions derive some interesting results in problems with three moving bodies.

Contributor:
John Herschel Project
From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[30 October 1847]
Source of text:
unknown
Summary:

Describes the funeral of James MacCullagh; mystified why he committed suicide.

Contributor:
John Herschel Project