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Correspondence Explorer

Choose two people to view all letters between them.

Showing 47 letters from 1825–1830

12 letters from Davies Gilbert; 35 letters from John Frederick William Herschel

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John Frederick William Herschel invents the actinometer to measure the heating power of the Sun’s rays

1825

1826

John Frederick William Herschel publishes in the Philosophical Transactions

1826: John Frederick William Herschel publishes “On the parallax of the fixed stars”.

1827

Joseph Nicéphore Niépce presents his photographs in England for the first time

1827

1828
1829

John Frederick William Herschel and Margaret Brodie Stewart are married in London

3 March 1829

1830

John Frederick William Herschel is elected Foreign correspondent of the Académie des sciences

1830

Birth of Caroline Emilia Mary Herschel, daughter of John Frederick William Herschel and Margaret Brodie Stewart

31 March 1830

John Frederick William Herschel is nominated for the presidency of the Royal Society, loses by 8 votes to the Duke of Sussex

30 November 1830