| Reference number | AP/11/25 |
| Level | Item |
| Title | Unpublished paper, 'On the nature and properties of straight lined angles' by J [John] Walsh |
| Date | 20 January 1824 |
| Description | Walsh discusses the work of Euclid on propositions relating to the sums of angles in triangles. He then seeks to show that the sum of the three angles of every plane triangle is equal to two right angles, independently of parallel lines. An earlier version of this paper is found at AP/11/23. The covering letter for this paper is found at AP/11/24.
Subject: Mathematics
Written by Walsh in Cork [Ireland] and addressed to T [Thomas] Young. |
| Extent | 3p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Digital images | View item on Science in the Making |
| Access status | Open |
| Related records in the catalogue | AP/11/24 |
| AP/11/23 |
Fellows associated with this archive
| Code | Name | Dates |
| NA7947 | Young; Thomas (1773 - 1829); physician, physicist and Egyptologist | 1773 - 1829 |