Details of exhibit
- Exhibition:
- 1911 Fifty-sixth Annual Exhibition of the Royal Photographic Society of Great Britain
- Exhibit title:
- Photographs of forming drops
- Exhibitor:
- Chas. R. Darling
- Section:
- V. Scientific Photography and Processes of Reproduction
- Exhibit No.:
- 650
- Description:
- These have hitherto only been possible by using the electric spark as an illuminant. The exhibitor discovered that when aniline is added to water at 80° C. or more the aniline rise to the surface and hangs in the form shown in the first photographs. The hanging mass then commences to fall through the water, going through the stages depicted, until a drop breaks away. The distortion due to severance is conspicuous in the 4th, 5th and 6th stages. After remaining a short time at the bottom of the vessel, the drop becomes spherical and rises to the surface (stage 7), when it coalesces with the aniline, from which it broke away (stage 8). The whole procedure is then repeated. The formation of secondary drops from the drawn-out net is also shown. As the water is almost identical in density with aniline, the drop is buoyed up, and forms so slowly that good photographs may be secured with one-tenth second exposure, thus improving on previous methods of observation.
- Exhibit type:
- Photograph
- Process:
- [Not Listed] ()
- Award:
- none
