| RefNo | MS/242/14 |
| Level | Item |
| Title | Letter from Jean François Dominique Arago to Thomas Young |
| Date | 24 January 1824 |
| Description | Letter added to the manuscript last page of the historical memorandum by Arago and Augustin Fresnel to Young on the history of research on polarisation for Encyclopaedia Britannica 4th to 6th supplements, Vol 6 (1824), 838-863. No origin listed and dated based on stamp. Addressed to Young at the Board of Longitude.
Contains last page of item MS/242/33.
Forwarding the historical note finishing the article on polarisation and summarising its contents and the passages that were omitted to keep the article short (1 - development of hues through multiple reflextion using metallical mirrors 2 - the rings that become visible when observing slits perpendical to the axis through a rhomboid 3 - polarised light absorbed by certain crystals. ) Aragao has previously published on the 3rd point in 1814, and the phenomenon is disputed by [Jean-Baptiste] Biot and [David] Brewster. |
| Language | French |
| Extent | 1p |
| Format | Manuscript |
| PhysicalDescription | Paper |
| AccessStatus | Open |
| RelatedRecord | MS/242/33 |
| MS/242/32 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA7947 | Young; Thomas (1773 - 1829); physician, physicist and Egyptologist | 1773 - 1829 |
| NA2974 | Arago; Dominique Francois Jean (1786 - 1853); mathematician, physicist, astronomer and politician | 1786 - 1853 |