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Directed Energy Weapon Downs Mosquitos
wisebabo writes "Nathan Myhrvol demonstrated at TED a laser, built from parts scrounged from eBay, capable of shooting down not one but 50 to 100 mosquitos a second. The system is 'so precise that it can specify the species, and even the gender, of the mosquito being targeted.' Currently, for the sake of efficiency, it leaves the males alone because only females are bloodsuckers. Best of all the system could cost as little as $50. Maybe that's too expensive for use in preventing malaria in Africa but I'd buy one in a second!" We ran a story about this last year. It looks like the company has added a bit more polish, and burning mosquito footage to their marketing.
The laser describes a perfectly straight line; no windage is needed. You therefore do not need to track the mosquito in three dimensions, but only two--no fine determination of range is required.
First: What's more impressive than the lasers that fry* the mosquitoes is the targeting and detection system that drives this crazy thing. Many people are looking at this and wondering how you pick out your targets. The system first scans the surrounding space and *listens*. What it is listening for is quite interesting. See, Malaria is an interesting disease because only specific mosquitoes carry it, and only the females. Since there could be many side effects to zapping any insects within range, or even any mosquitoes (regardless of species or gender), the laser targeting system listens for the precise wingbeat frequency of the female Anopheles Stephensi mosquito and then zaps only those.
*Technically speaking, the mosquitoes will not be fried in the final product. In addition to potential danger to other occupants of this system's effective bubble, it is planned for deployment to very poor areas of the world where electricity will likely be at a premium. As a result, they are also experimenting with the minimum amount of energy a laser strike must possess to render the mosquito infertile, because that interrupts the cycle necessary for Malaria transmission between humans.
Cheers,
Makr
'the Internet is right.'
Female mosquitoes that can sense the lasers at range and randomly avoid them come to dominate the species.
Who modded this up as interesting?
Nothing can sense a laser before it has hit.
Hence the warning "do not look into laser with remaining eye"
[Fuck Beta]
o0t!