Speed cameras, computer artwork. Speed cameras are used to photograph vehicles exceeding the local speed limit. As well as a camera, each unit also includes an electronic flash that is used at night. The camera measures a vehicle's speed using either piezoelectric strips embedded in the road, or high frequency radio waves. The photograph taken shows the number plate of the vehicle and has details encoded on the frame (time, date, location and speed). The film is recovered and processed at regular intervals, and notices are issued to drivers. As of 1993, the photograph is admissible as evidence in the case of disputed offences.
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.
Shop with Confidence (Fine Art America Return Policy)
Our return policy is very simple:
If you're not happy with a purchase that you made on FineArtAmerica.com, for any reason, you can return it to us within 30 days of the order date. As soon as it arrives, we'll issue a full refund for the entire purchase price. Please note - Fine Art America does not reimburse the outgoing or return shipping charges unless the return is due to a defect in quality.