Some speed cameras detect vehicle speed by measuring the Doppler effect—the change in pitch of a car's engine sound as it approaches and passes the camera—rather than taking photographs, allowing them to 'catch' speeding drivers with their ears instead of their eyes.
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How Speed Cameras REALLY Catch YouAdded:
Most people think speed cameras only snap a photo when you drive too fast, but here's the wild part. Some speed cameras don't actually measure your speed at all. They measure the tiny change in the pitch of your car's sound, just like how a passing siren suddenly drops in tone. It's called the Doppler effect, and the camera listens for it, even if you're completely silent inside your car. So, yeah, some cameras literally catch you with their ears, not their eyes. Subscribe for more incredible facts.
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