Mosquito Beat Radio - Beat to the DEET |
..... News agencies reported that a radio station broadcast ultrasound along with its programmes to repel mosquitoes .... great! Radio listeners in Brazil were told that listening station 'Band FM' was all you need to do to beat mosquitoes .... just have the radio stuck close by (probably their ears).
Oops, the radio station actually broadcast at 15kHz, and dragonflies have a wing beat frequency of between 20 and 170Hz ... but even if the radio station used this much lower frequency, they have tested, and it still doesn't work.
Ah well back to the DEET instead of the BEAT.
These kinds of stories always turn out to be a fly in the ointment. Or is that a flea in the ear Ha Ha
ReplyDeleteSorry I never responded to your comment .... oops I wasn't very diligent back in 2012 was I? Belated thanks for the comment ... a flea in the ear is probably another story!
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