| Reference number | MS/929/1/55 |
| Level | Item |
| Title | Letter from [John Ambrose] Fleming, FRS, to James Mackenzie Davidson |
| Date | 16 June 1917 |
| Description | Discusses the fact that submarines cannot transmit wireless signals when submerged. Directs Mackenzie Davidson towards Chapter Nine of his book 'Electric Wave Telegraphy', in which he he explains that electric waves can glide over sea water, as the sea is a good conductor, however, cannot penetrate it because, like all good conductors, it is opaque [and so the waves are absorbed]. |
| Extent | 1 side |
| Format | Manuscript |
| Access status | Open |
Fellows associated with this archive
| Code | Name | Dates |
| NA7145 | Fleming; Sir; John Ambrose (1849 - 1945); electrical engineer and university teacher | 1849 - 1945 |