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A wavelength the same size as a mosquito body.

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  • 12-09-2011 1:06pm
    #1
    jumpjack
    Registered Users Posts: 131 ✭✭


    A 300'000 hertz sound would have a wavelength of the same size of a mosquito body.
    I wonder what would it happen to the mosquito by emitting such a soundwave at 100 or 1000 W. :)


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    #2
    Fuzzy Clam
    Closed Accounts Posts: 3,293 ✭✭✭Fuzzy Clam


    jumpjack wrote: »
    A 300'000 hertz sound would have a wavelength of the same size of a mosquito body.
    I wonder what would it happen to the mosquito by emitting such a soundwave at 100 or 1000 W. :)

    300,000 Hertz is equal to about 1000 meters. That's one big mother****er of a mozzie. :D


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    #3
    Fuzzy Clam
    Closed Accounts Posts: 3,293 ✭✭✭Fuzzy Clam


    300,000 (300 Kilohertz) is in the long waves radio spectrum.


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    #4
    djpbarry
    Registered Users Posts: 13,104 ✭✭✭✭djpbarry


    Fuzzy Clam wrote: »
    300,000 (300 Kilohertz) is in the long waves radio spectrum.
    Yes, but jumpjack referred to a (theoretical) 300 kHz sound wave. I'm not sure why, but (s)he did.


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    #5
    jumpjack
    Registered Users Posts: 131 ✭✭jumpjack


    djpbarry wrote: »
    Yes, but jumpjack referred to a (theoretical) 300 kHz sound wave. I'm not sure why, but (s)he did.
    I can't kill mosquitos by light, I need a mechanical effect; and a 1000W sound "focused" into a 1 mm wave could have intersting effects, I guess. :D


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    #6
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,725 Mod ✭✭✭✭Capt'n Midnight


    Moved the discussion from the facts thread.


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    #7
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,725 Mod ✭✭✭✭Capt'n Midnight


    sound is 340 meters per second ish (depending on termperature / pressure etc.)

    call it 300m , a sound of 300Hz would have a wavelength of 1m
    so 300,000 would be 1 mm

    thing is those little blood suckers are bigger than 1mm :mad:


    BTW someone was working on computer controlled lasers to zap them


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    #8
    djpbarry
    Registered Users Posts: 13,104 ✭✭✭✭djpbarry


    Capt'n Midnight wrote: »
    BTW someone was working on computer controlled lasers to zap them
    Yeah, there was a cool article on it in Spectrum not too long ago:

    http://spectrum.ieee.org/consumer-electronics/gadgets/backyard-star-wars


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    #9
    IrishKnight
    Registered Users Posts: 922 ✭✭✭IrishKnight


    jumpjack wrote: »
    I can't kill mosquitos by light

    Er, yes you can.

    http://www.ted.com/talks/nathan_myhrvold_could_this_laser_zap_malaria.html


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    #10
    jumpjack
    Registered Users Posts: 131 ✭✭jumpjack


    Capt'n Midnight wrote: »
    thing is those little blood suckers are bigger than 1mm :mad:
    yes, but the minor/weakest size is 1 mm ;-)


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