Tuesday, 22. October 2002
Topic: - on October 22, 2002 at 9:49:51 PM CEST
'Watch for Deer' signs go high-tech
An experimental system is being tried in Yellowstone National Park that uses radar to detect large animals. If an animal like a bison, elk, deer or moose enters the radar beam, the system triggers flashing lights on a road warning sign.
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