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The SolaRoad was the world's first bike path made from solar panels, and was a prototype project testing the feasibility of various proposals for smart highways.The 72-metre (236 ft) path opened in the week of 21 October 2014, [3] and was designed by a consortium of organizations, which built the pathway in Krommenie, Netherlands.
Solar road stud. Solar road studs are flashing solar cell powered LED low-maintenance lighting devices that delineate road edges and centrelines. Embedded in the road surface, they are an electronic improvement on the traditional cat's eyes [1] and raised pavement marker in that they may give drivers a larger reaction window.
Solar traffic lights are signalling devices powered by solar panels positioned at road intersections, pedestrian crossings and other locations to control the flows of traffic. They assign the right of way to road users by the use of lights in standard colors (red - amber/yellow - green), using a universal color code .
Tri-color VASI. A tri-color system consists of a single-light unit projecting a three-color visual approach path. Below the glide path is indicated by red, on the glide path is indicated by green, and above the glide path is indicated by amber. When descending below the glide path, there is a small area of dark amber.
Here's everything to know about the northern lights and how to see them now that the sun has reached its solar maximum: The northern lights explode up into the sky over Massachusetts as a group ...
Iridescence is caused by wave interference of light in microstructures or thin films. Examples of iridescence include soap bubbles, feathers, butterfly wings and seashell nacre, and minerals such as opal. Pearlescence is a related effect where some or most of the reflected light is white. The term pearlescent is used to describe certain paint ...
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