Scientist Challenges the Conventional Wisdom That What You Can’t Hear Won't Hurt You

A wind turbine is a rotary device with a gigantic propeller as big as a football field that turns in the wind to generate electricity. Although wind turbines are more often found in Europe than in the United States, they're rapidly becoming more popular here as a "green" energy source. Most people consider that a good thing, except the rotors of wind turbines also generate noise, particularly in the infrasound range, that some people claim makes them feel sick.

Since frequencies that low can't be heard, many scientists who study hearing have assumed they can't have any effect on the function of the ear. But a little known phenomenon related to the infrasound generated by wind turbines is making some scientists challenge the common wisdom that what we can't hear won't hurt us.

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