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Results tagged with fan
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user 1236
The fan is an electrical appliance using the principles of a motor.
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Why does a moving fan seem transparent?
If the fan frequency is at least 1 blade per 1/50 second, which is the same as 10 rotations per second for a 5-blade fan, for example, the following is true:
During 1/50 seconds, each point of the image … It's a weighted average of the (RGB) color of the objects behind the fan at the given point; and the color of the fan blade. …
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