A few decades ago, lightbars were the only form of emergency lighting on a patrol vehicle aside from (maybe) a spotlight. Those early lightbars had one or two rotating lights that weren’t very bright, ...

When cities transform into a colorful world of lights as darkness falls, it's often only possible to estimate their contours, which depending on the perspective can draw the attention to key details ...

KITTERY, Maine — Our cultural image of the classic New England lighthouse typically includes the rotating beam which guided mariners to safety for generations. This traditional system was restored ...

Answer: Good question. The green and white rotating light indicates that it is a civilian airfield. Pilots see alternating green and white flashes. Military airfields have two white flashes followed ...