标题: Zap Zone Defender: Why It’s Superior to Citronella [打印本页] 作者: Jamila76N 时间: 5 天前 21:36标题: Zap Zone Defender: Why It’s Superior to Citronella
Though the above nodes seize the essence of the bug zapper, I used to be shocked to notice that neither give technical particulars on the workings of those technological marvels (or, as we could learn, worthless and even detrimental items of know-how). Bug zappers were created in 1934 by William F. Folmer and Harrison L. Chapin. Since then, little has changed in the basic design of the zapper. The bug zapper is often shaped like a lantern, with an electrically grounded housing and, as speedo notes, is surrounded by a wire mesh that prevents children or squirrels from being subjected to electrocution. A fluorescent light, typically of the blue ultraviolet variety, attracts insects. Surrounding the sunshine are two layers of wire mesh, separated by a gap the width of your average insect. These wire meshes are electrified by a transformer that ups the 120-volt present that powers the zapper to 2000 volts or more.
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