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The title says it all: this blog features physics videos found everywhere on the web: animations, demonstrations, lectures, documentaries.
Please go here if you want to suggest other nice physics videos, and here if I mistakingly infringed your copyrights. If you understand French, you'll find a huge selection of physics videos in French in my other blog Vidéos de Physique.

Monday, 18 November 2013

Wind lidars: using laser beams to detect wind speeds

The accurate measurement of wind speeds is critical for effective siting of wind farms. The ZephIR lidar calculates wind speed and direction by projecting a laser into the air and detecting the Doppler-shifted backscatter from tiny particles and dust in the atmosphere. The process is explained here by their team of scientists.

 

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