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Hamilton, William Rowan in correspondent 
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Showing 41–57 of 57 items

Herschel3854

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[29 January 1833]
Source of text:
unknown
Summary:

Rev. Humphrey Lloyd's paper on conical refraction agreed with WH's conclusions.

Contributor:
John Herschel Project

Herschel3855

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[19 October 1831]
Source of text:
unknown
Summary:

Encouraged that a calculus can be constructed out of his exponential series findings.

Contributor:
John Herschel Project

Herschel3856

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[3 December 1830]
Source of text:
unknown
Summary:

Sorry to hear that JH was not elected President of the R.S.L. Sending a supplement to WH's 'Theory of Systems of Rays' essay. Recommends [Edwin Richard Windham Wyndham-Quin,] Lord Adare for consideration as a member of the R.A.S.

Contributor:
John Herschel Project

Herschel3857

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[17 October 1834]
Source of text:
unknown
Summary:

Developed a method that greatly simplifies Joseph Lagrange's integration of the 3n differential equations of motion of the second order by reducing all calculations to the application of 'one principal function.' Applies the method to planetary motion.

Contributor:
John Herschel Project

Herschel3858

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[26 May 1838]
Source of text:
unknown
Summary:

Congratulates JH on his successful Cape Town enterprise.

Contributor:
John Herschel Project

Herschel3859

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[18 June 1838]
Source of text:
unknown
Summary:

Pleased that the Royal Irish Academy awarded its Science Medal to James MacCullagh for his paper on the "Laws of Crystalline Reflexion and Refraction;" he deems MacCullagh's essay superior to WH's "On Algebra as the Science of Pure Time.","L

Contributor:
John Herschel Project

Herschel3860

From:
William Rowan Hamilton
To:
Sir John Herschel
Date:
[8 February 1839]
Source of text:
unknown
Summary:

Asks JH to keep him updated on English research of the dynamics of light. Currently considering the 'propagation' of light waves, as distinguished from their mere 'preservation'; asks whether this is a new study.

Contributor:
John Herschel Project

Herschel3861

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[13 February 1839]
Source of text:
unknown
Summary:

In reply to WH's 1839-2-8 inquiry, JH believes that 'Skotodynamics' (the propagation of light waves) is a new line of research. Caroline Herschel is ecstatic about her Royal Irish Academy medal.

Contributor:
John Herschel Project

Herschel3862

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

Herschel3863

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

Herschel3864

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

Herschel3865

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

Herschel3866

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

Herschel3867

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

Herschel3868

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

Herschel4041

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

Herschel4042

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
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