sensors and control systems. At intersections, they regulate the flow of vehicles and pedestrians. Traffic lights cycle through colors: red, yellow, and green. Red indicates stop, yellow warns of ...

They often incorporate sensors that monitor traffic flow and road conditions, and they don’t flash. Did you just see a flash as you sped toward a yellow light ... in the infrared, and they ...

These sensors ‘see’ heat by detecting infrared photons, which are tiny particles of heat radiation. When these photons hit a semiconductor component called a photodiode, they convert the infrared ...

As great as cameras that operate in the visual light spectrum are, they omit a lot of the information that can be gleaned from other wavelengths. There is also the minor issue that visibility is ...