prevent teenagers to not at all become antisocial. One of these alternative solutions is the “Mosquito” which is a sonic device that gives out a piercing noise audible only to teenagers and people in there early twenties. This device has been installed as a “yob” (slang for an antisocial person) deterrent at nearly 3‚000 locations such as grocers and shopping malls across Great Britain. This Mosquito is a camouflaged speaker box not larger than shoebox and it sends out a pulse
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Transfer your product in a clean sprayer and there you go ‚ Natural Insect Repellent. Illustration: Recommendation : There are some natural mosquito repellent ideas such as cinnamon oil‚ castor oil‚ or clove oil. These do work‚ but are also very strong odors‚ and they can stain. Commercially available‚ all-natural mosquito repellents are formulated and tested to not stain or burn your skin. You should let the companies do the trial and error research to figure out what works best
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fever viruses‚ and other diseases. Studies have conducted throughout the world to find a solution to lessen the growth of this kind of mosquito. People have used mosquito nets to prevent their children from the bites of mosquitoes. People also used mosquito repellents to prevent the growth of the mosquito. People have focused on using larvicides for mosquito control. Based on studies‚ the active ingredient in these larvicides‚ methoprene‚ stuns the growth of the other organisms that has been affected
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current moving through a coil of wire can generate an electric magnetic field and power an electrical load connected to a similar coil of wire. This experiment has been performed before but the goal of this project was to increase the efficiency of the circuit. In this experiment multiple different coils were tested in order to find the most efficient way to generate a strong electromagnetic field around a coil of wire. Variables like wire gauge‚ coil density‚ and number of coils were tested to gather
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Kamias as Mosquito Killer II. Rationale The title has been selected for the study because mosquito bites are common here in the Philippines and it’s the cause of dengue. A total of 54‚659 dengue cases were reported nationwide from January 1 to August 14‚ 2010‚ much higher than the recorded 31‚248 cases in the same period in 2009 and there’s not much difference in dengue cases from 2010 and as of now. The main purpose for this is to test the effectiveness of Chili and Kamias as mosquito killer
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includes a test coil through which vary or alternating current (AC) is passed. 3. A varying current flowing in a test coil produces a varying electromagnetic field around the coil‚ As shown in this diagram Amperage * # of coils= strength of magnetic field 4. The electromagnetic field produced around the coils is directly proportional to the magnitude of applied current‚ rate of change in current or frequency and the coil parameters. 5. Coil parameters include:
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used predominately across the world in high power applications. To explain the details of why this is so‚ a bit of background knowledge about AC is necessary. If a machine is constructed to rotate a magnetic field around a set of stationary wire coils
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IV V INTRODUCTION. Dengue fever is an infectious disease caused by a virus. It is infected by mosquito bites. It is common in warm‚ wet areas of the world. Outbreaks happen during the rainy season. Most people with dengue recover within 2 weeks. However some people with dengue infectious are severe and causes bleeding from nose‚ gums and under the
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C H A P T E R Learning Objectives ➣ Relation Between Magnetism and Electricity ➣ Production of Induced E.M.F. and Current ➣ Faraday’s Laws of Electromagnetic Induction ➣ Direction of Induced E.M.F. and Current ➣ Lenz’s Law ➣ Induced E.M.F. ➣ Dynamically-induced E.M.F. ➣ Statically-induced E.M.F. ➣ Self-Inductance ➣ Coefficient of Self-Inductance (L ) ➣ Mutual Inductance ➣ Coefficient of Mutual Inductance ( M ) ➣ Coefficient of Coupling ➣ Inductances in Series ➣ Inductances in Parallel 7
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high frequency sounds). These electronic devices have been shown to have no effect as a mosquito repellent by studies done by the EPA and many universities.[1] Insect repellents help prevent and control the outbreak of insect-borne diseases such as malaria‚ Lyme disease‚ dengue fever‚ bubonic plague‚ and West Nile fever. Pest animals commonly serving as vectors for disease include the insects flea‚ fly‚ and mosquito; and the arachnid tick. Synthetic repellents tend to be more effective and/or longer
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