| RefNo | MS/603/4/140 |
| Previous numbers | 727 |
| Level | Item |
| Title | Letter from R L [Richard Lionel] Hippisley, Royal Engineers, Stanhope Lines, Aldershot, to [Joseph] Larmor |
| Creator | Hippisley; Richard Lionel (1853-1936); British army officer and electrical engineer |
| Recipient | Larmor; Sir Joseph (1857-1942); Irish theoretical physicist |
| Date | 7 February [no year] |
| Description | He asks Larmor for a reference to any publication in which the 'skin effect' of electric currents in conductors is treated mathematically; Hippisley gives the example of a periodic current in a solenoid surrounding an iron core. He thinks that Oliver Lodge discussed the problem somewhere, in reference to lightning conductors. Larmor may be able to tell him the periodicity in a solenoid necessary for the skin effect of the eddy currents to become noticeable.
With some pencilled equations by Joseph Larmor. |
| Extent | 3p. |
| Format | Manuscript |
| PhysicalDescription | Ink on paper |
| AccessStatus | Open |