This silent black and white teaching film created in 1946 may be the first bubble raft film ever recorded.
Possibly the first bubble raft film ever created, this demonstrates the structure and mechanical properties of a metal. It demonstrates the construction of a bubble raft, the geometry of a dislocation within a bubble raft and the compression of a single ‘crystal’ between parallel plates. It highlights each of the stages with the use of a photograph of a bubble raft which can be turned to various angles in order for the viewer to see any dislocations, ‘slip planes’ and formations of defects such as holes in the structure. It goes on to describe the result of covering a surface of a liquid with bubbles is to form a ‘polycrystalline’ raft composed of areas with different orientations and the development of ‘grain boundaries’. The film ends by describing and demonstrating 3-dimensional crystals and that with more than one layer of bubbles, different arrangements of close packing can be observed.
This film was made by the Kodak Research Laboratory in Middlesex.
For this film, and several others in our collection, we have tried to contact any known copyright holders and believe it to be an orphan work. If you are the rights holder, would like it to be taken down, or have any more information, please get in touch at firstname.lastname@example.org.