Search: 1820-1829::1821 in date 
Sorted by:

Showing 120 of 209 items

Text Online
From:
André-Marie Ampère
To:
Gerrit Moll
Date:
1821
Source of text:
Fonds André-Marie Ampère chemise 183, Archives de l'Académie des sciences, Paris
Summary:

No summary available.

Contributor:
La Correspondance d’André-Marie Ampère
Text Online
From:
James Cumming
To:
J. S. Henslow
Date:
1821
Source of text:
Cambridge University Library MS Add. 8176:7
Summary:
Contributor:
Henslow Correspondence Project
From:
[J.?] Henry
To:
Sir John Herschel
Date:
[1821
Source of text:
TxU:H/M-1002; Reel 1083
Summary:

Compares observed times of rocket bursts at observatory and at Blackman St.

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[1821?]
Source of text:
RS:HS 2.345
Summary:

Can JH deputize for him at the Astronomical Society meeting?

Contributor:
John Herschel Project
From:
Henrik Johan Walbeck
To:
Sir John Herschel
Date:
[1 January 1821]
Source of text:
unknown
Summary:

Further eclipse observations from around the world [see HW's 1820-7-30].

Contributor:
John Herschel Project
From:
James South
To:
Sir John Herschel
Date:
[1821]
Source of text:
TxU:H/M-0946.1; Reel 1083
Summary:

Sends three chronometers set to Blackman St. time. Confirm them by a transit of Arcturus tomorrow, then return them to JS at Blackman St. Gives times for next rocket firings.

Contributor:
John Herschel Project
From:
Mary Pitt Herschel
To:
Sir John Herschel
Date:
[1821]
Source of text:
TxU:H/M-0620.4; Reel 1086
Summary:

William Herschel is glad that JH declined offer for WH to become commissioner of longitude. Hopes JH enjoys visit with James South and family.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Henry Kater
Date:
[1821 to 1822]
Source of text:
RS:HS 19.17 (C: RS:HS 25.13.21)
Summary:

Sends set of William Herschel's duplicated papers. Curious results 'examining the rings,' but bad weather has hampered experiments. Correction of spherical aberration. JH is using J. d'Alembert's Opuscules. Image of Alpha Lyrae.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Michael Faraday
Date:
[1821 or later]
Source of text:
RI 499-500 F3B
Summary:

Discusses origin and reactions of enclosed borate of lead. Postscripts on parallel strata in glass.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mrs. Mary Frances Kater
Date:
[1821 to 1828]
Source of text:
RS:HS 25.13.22
Summary:

Accidentally found some verses on a scrap of paper, and wondered if it would fit the music of Cherry Ripe; sends verses to MK.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mrs. Mary Frances Kater
Date:
[1821 to 1828]
Source of text:
RS:HS 25.13.23
Summary:

Asks MK's permission to allow a close friend to make use of the words once sent to her by JH as suitable for the music of Cherry Ripe.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Whewell
Date:
[1821?]
Source of text:
TC, Camb. Add. Ms.a.20718 (C: RS:HS 21.36)
Summary:

Provides detailed travel suggestions for WW's planned trip to the continent. Asks WW to deliver letters to various European scientists.

Contributor:
John Herschel Project
Text Online
From:
Michael Faraday
To:
Alexander John Gaspard Marcet
Date:
3 January 1821
Source of text:
RI MS F1 B01
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Joseph Louis Gay-Lussac
To:
Michael Faraday
Date:
12 January 1821
Source of text:
IEE MS SC 2
Summary:

No summary available.

Contributor:
Faraday Project
From:
Sir John Herschel
To:
Jean Baptiste Biot
Date:
[12 January 1821]
Source of text:
RS:HS 4.90 & 20.108
Summary:

Regarding refraction in crystals of apophyllite and quartz.

Contributor:
John Herschel Project
From:
G[erard] Moll
To:
Sir John Herschel
Date:
[16 January 1821]
Source of text:
RS:HS 13.47
Summary:

Thanks for the kind reception afforded him at Slough. Sends a copy of [J. H.?] Schröder's paper on the discoveries of William Herschel. Also sends some observations of the late solar eclipse made in Holland.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Henry Kater
Date:
[16 January 1821]
Source of text:
RS:HS 19.14 (C: 20.109)
Summary:

Collecting English observations of eclipse of 7 Sept. 1820 for H. J. Walbeck. Construction of object glasses.

Contributor:
John Herschel Project
From:
William Hyde Wollaston
To:
Sir John Herschel
Date:
[1821 or 1827]-1-17
Source of text:
RS:HS 18.281
Summary:

Sir Edward Codrington will take charge of chronometer for Captain Copeland if delivered to Codrington at Portsmouth.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
[22 January 1821]
Source of text:
RS:HS 2.153 & 20.110
Summary:

Hopes to call on Thursday to discuss queries. Regarding recent astronomical experiments. Alterations to his twenty-foot telescope.

Contributor:
John Herschel Project
From:
John Brinkley
To:
Sir John Herschel
Date:
[29 January 1821]
Source of text:
RS:HS 4.274
Summary:

It was too cloudy for any worthwhile observations to be made during the recent eclipse. Looking forward to the publication of JH's work. Outlines his own recent and projected work. Thomas Brisbane observed the eclipse at Cork.

Contributor:
John Herschel Project