Guided busway wheel mechanism. Bus entering a guided section of its route. One of the horizontal guide wheels (centre right) is just starting to make contact with the metal kerbs. This gradual contact allows buses to enter and leave the guided sections without excessive slowing. This kerb-guidance system controls the steering of the bus while it is in the guided sections. This bus is operating on the Cambridgeshire Guided Busway (CGB), built from 2007 and opened in August 2011. Photographed near Histon, UK, in September 2011.
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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