Rule of Thumb

CYCLISTS CAN FIND CARS BY TURNING HEAD

If you turn your head slightly left to right while cycling, you can figure out whether cars you can’t see ...

If you turn your head slightly left to right while cycling, you can figure out whether cars you can’t see are getting closer or not through the Doppler Effect, even with that short a distance and at that low a speed. Stereo hearing required. – Glenn Fleishman, Journalist, Seattle, WA, US

01/20/14

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