A far-field optical appearance meter captures hemispherical light distributions. Appearance is recognized as a property that determines an important part of the human interface. The usual way to assess the overall appearance is by a trained person examining the surface visually under standard illumination. It is literally in the eye of the beholder and thus subjective. The meter makes it possible to capture all important optical characteristics of a surface in a second.
A freeway power generator is used to convert the motion of moving vehicles in generating useful amounts of energy. The system measures forces of wheeled vehicles to propel a driveshaft that is connected to a generator positioned under a roadway's surface. As vehicles pass over the system, the actuators move up and down and turn the driveshaft of the generator. The power generated can be stored to provide enough electricity for lighting or transportation warning systems. Click here for more info .
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