Amazing technology: LIDAR aka. LASER Radar

This technology uses a LASER source and a LASER sensor detector to measure the laser beam travel time to calculate the distance to the object, like a SONAR or RADAR. If you combine this technology with a rotating head where you install the LIDAR sensor and also you know your relative angle position, you can make a 360º plots of your surroundings, like in the following astonishing video;

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