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Uploaded by jcherwitz on Jan 3, 2011
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Travel & Events
Standard YouTube License
It is fairly easy to see that as the vehicle crosses the sensor placed in the road the yellow light is cut short to red. Once you can see this it becomes very obvious this is how their "magic trick" works.
mawsea07 1 year ago
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It is fairly easy to see that as the vehicle crosses the sensor placed in the road the yellow light is cut short to red. Once you can see this it becomes very obvious this is how their "magic trick" works.
mawsea07 1 year ago