Traffic speed camera. Computer artwork of a traffic speed camera marked by yellow and black warning stripes. The camera has been triggered by a speeding vehicle and is taking a picture (as shown by the flash) of the vehicle's numberplate. The camera measures a vehicle's speed using either radio waves or piezoelectric strips embedded in the road. The photograph also records the time, date, location and speed of the vehicle. The film is recovered and processed at regular intervals, and notices are issued to drivers. The warning markings are needed to make the cameras visible to drivers, as required by law in the UK.
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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