| Every vehicle owner driving around town must have at some time experienced the frustration of waiting on a red traffic signal. It may be lat...
| Every vehicle owner driving around town must have at some time experienced the frustration of waiting on a red traffic signal. It may be lat...
| A research team from the University of Utah (United States) under the leadership of professor Rajesh Menon has found a way to make cheap, fu...
| High brightness LEDs and special optics allow street lamps to be spaced up to 50 meters apart -- much wider than is possible with other solu...