Traditional olive millstones, Spain. These conical millstones consist of carved granite, and were used in the traditional Spanish method of crushing harvested olives. The millstones were driven by animals such as mules or horses, grinding the olives into a paste prior to pressing to obtain ollive oil. Modern mills mostly use stainless steel metal-toothed grinders, though some still use millstones. These millstones were donated by the Carbonell olive oil producer. Photographed in the Botanical Gardens, Cordoba.
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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