Search results
Results from the WOW.Com Content Network
Bug zapper traps may be installed indoors, or outdoors if they are constructed to withstand the effects of weather. However, they are not effective at killing biting insects (female mosquitoes and other insects) outdoors, [4] [5] being much more effective at attracting and killing other harmless and beneficial insects.
The handle contains a battery-powered high-voltage generator. The circuit is a minimalist self-oscillating voltage booster, that is small, low-cost, composed of very few components, and continuing to operate when the battery is depleted to a fraction of its original voltage, a so-called Joule thief circuit.
A mosquito laser is a proposed device that would use lasers to kill mosquitoes. The primary goal would be to reduce malaria infection rates. In 2007, the Bill & Melinda Gates Foundation asked Intellectual Ventures to find a way to fight and eventually end malaria. [ 1 ]
Operation of a lead-acid battery may, in case of overcharge, produce flammable hydrogen gas by electrolysis of water inside the battery. Jump start procedures are usually found in the vehicle owner's manual. [3] The recommended sequence [4] of connections is intended to reduce the chance of accidentally shorting the good battery or igniting ...
The joule thief is not a new concept. Basically, it adds an LED to the output of a self-oscillating voltage booster, which was patented many decades ago.. US Patent 1949383, [1] filed in 1930, "Electronic device", describes a vacuum tube based oscillator circuit to convert a low voltage into a high voltage.
The Reusable Booster System (RBS) was a United States Air Force research program, circa 2010 to 2012, to develop a new prototype vertical-takeoff, horizontal-landing (VTHL) [1] reusable booster and a new prototype expendable second stage to replace the existing Evolved Expendable Launch Vehicles (EELV) after 2025. [2] The program was ...
The test vehicle was equipped with a pseudolite system, inertial sensor, radar altimeter, flush air data system, and NavIC receiver, among other multi-sensor fusion devices. The RLV-LEX-03 demonstrated the robustness and adaptability of flight systems for multiple missions by reusing the winged body and flight systems from the LEX-02 without ...
World Mosquito Day, observed annually on 20 August, is a commemoration of British doctor Sir Ronald Ross's discovery in 1897 that female anopheline mosquitoes transmit malaria between humans. [1] Prior to the discovery of the transmitting organism, vector, there were few means for controlling the spread of the disease although the discovery of ...