Ducretet apparatus. This device was invented by the French instrument maker Eugene Ducretet (1844-1915). The design includes Ruhmkorff coils (solenoids), with part of the apparatus immersed in oil (right). Similar designs were used for Ducretet's oil break spark key (used in telegraphy) that prevented sparks that could ignite flammable gases. Artwork from the ninth volume (first period of 1892) of the French popular science weekly 'La Science Illustree'.
About the Artist -
Science Photo Library was founded in 1981 by Michael Marten, one of the authors of "Worlds Within Worlds", a book exploring different ways to observe the universe - from electron micrographs, to images of earthrise taken from the Apollo spacecraft. When Marten started receiving requests for the beautiful images in the book, he had an idea of setting up Science Photo Library.
Since then, Science Photo Library has continued to work alongside world acclaimed photographers and the leading science and medical experts to provide a central source of the best science and specialist imagery available. Although the collection started with scientific images, it has grown to encompass all aspects of science and their impact on everyday life.
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