Search: Herschel, John in correspondent 
Hamilton, William Rowan in correspondent 
1840-1849::1847 in date 
Herschel, John in addressee 
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Showing 16 of 6 items

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