Talk radio is often ridiculous, if not downright dangerous, but an Austrian radio station has come up with a great idea: Broadcast sounds that repel mosquitoes, so if you hear something buzzing in your ear, you know what to do.
The Radio World website reports than Viennese radio station KroneHit has embedded a 14,850 Hz tone in its audio signal in an effort to discourage mosquitoes from biting. The tone imitates the buzzing of a female mosquito, which discourages other female mosquitoes from biting (since it’s the females who cause all the problems for humans). The tone can’t be heard by human ears, so it is unnoticeable to human listeners. All they hear is the usual program. Mosquito expert Michael M