Know The Sign

Flyswatters : The device was made as part of an effort to fight malaria in tropical areas.

this one isn’t quite at handheld size yet—but it’s still cool. Financed by Bill Gates and inspired by Reagan’s “Star Wars” program, scientists have built lasers that fry mosquitoes. The device was made as part of an effort to fight malaria in tropical areas. It can “hear” the wings beating, and proceeds to fry the buggers on the spot. The lasers are small enough to be placed on poles around the edge of villages, making a kind of “fence” that mosquitoes can’t pass.