Details of exhibit
- Exhibition:
- 1911 Fifty-sixth Annual Exhibition of the Royal Photographic Society of Great Britain
- Exhibit title:
- The absorption lines D1 and D2 of sodium in a magnetic field
- Exhibitor:
- Professor P. Zeeman
- Section:
- V. Scientific Photography and Processes of Reproduction
- Exhibit No.:
- 687
688 - Description:
- (687) Figs. 1 to 4 relate to observations at right angles to the lines of force. The upper and lower of the three strips of the figure with polarised light; in the central strip the phenomenon is represented as it is seen in natural light. The vapour density increases from Figs. 1-4. Figs. 5 and 6, observations parallel to the field with different vapour density showing circular polarisation of the components.
(688) Fig. 7, observation at angle of 39° to the field. Fig. 8, copied from drawing adapted from Mitchell. "Transactions International Union for Solar Research," II., 199, 1908. Fig. 9, spot lines obtained in non-uniform laboratory fields. The correspondence between the types 5, 6, and 10 of Fig. 8 in sun and 5, 6, 7, 10, of Fig. 9 in the laboratory is remarkable. See also Hale's Paper "Astrophysical Journal," XXVIII., 321, 1909. - Exhibit type:
- Photograph
- Process:
- [Not Listed] ()
- Award:
- medal
