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Mosquito Laser

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Scientists have developed a hand-held laser that can kill mosquitoes in high volume, and they are hoping this will help combat one of the world's most deadly diseases. A high-speed video camera that captures up to 6,000 frames per second was used by a company called Intellectual Ventures to show the invention in action. But first, to study the flight dynamics of mosquitoes, the scientists recorded their flight novements. In this video, tiny suspended water droplets illuminated by a green laser show the movement of air around the mosquito's wing. In this video, a mosquito's flight was recorded, and we are seeing it in extremely slow motion. To get this footage, the mosquito was placed in a custom-designed chamber that sensed when the mosquito flew through the focal plane of the camera. Later, after studying the data and setting up the system, the mosquitoes are struck and killed by lasers. Here, you can see the laser strike, parts of the mosquito breaking off, and the body falling to the ground. If played in real time, these segments would be about one tenth of a second. The goal of this research is combating malaria, a disease sprend through tropical regions of the world by mosquitoes. Nearly a million people die of the disease each year. Intellectual Ventures said their involvement began with a ckallenge from the Bill and Melinda Gates Foundation. To set up their system, the scientists created what they call a photonic fence, which in the field would have a beam of infrared light between fence posts. The system detects mosquitoes and shoots them down. The inventors claim all the laser parts came from inexpensive consumer electronics. They also claim the system can distinguish between different insects. It would only target mosquitoes, and let others - such as butterflies and bumblebees - pass through unharmed. The system could even distinguish between male and female mosquitoes, based on their wing beats. This is important because only female mosquitoes bite humans.

Video Details

Duration: 2 minutes and 21 seconds
Country: United States
Language: English
Producer: National Geographic
Director: National Geographic
Views: 204
Posted by: greenbo on Apr 11, 2010

A new laser system detects and destroys mosquitoes

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