| RefNo | MS/119/2/141 |
| Level | Item |
| Title | Letter from John Allan Broun, Makerstoun Kelso to Humphrey Lloyd |
| Date | 7 July 1846 |
| Description | Discussion on the balance constant. Broun argues the effect of temperature on the time of vibrations is due to changes in the distance of the centres of motion and gravity. Broun records the equation of equilibrium. Discussion on temperature corrections and its effects on the needle. Bround informs Lloyd that he conducted various experiments over the course of three years that gave differing results, but have a mean value for K. This verified the value of K and the temperature coefficient. Discussion on deflections. Broun informs Lloyd about his intentions to extend experiments to the bifilar. Broun describes the induction inclinometer, and how with adjustments the balance needle may be an efficient instrument. |
| Extent | 4p |
| Format | Manuscript |
| PhysicalDescription | Ink on paper |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA3813 | Broun; John Allan (1817 - 1879) | 1817 - 1879 |
| NA8252 | Lloyd; Humphrey (1800 - 1881) | 1800 - 1881 |