Repair of electrical equipment
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The first thing they look for and use when discovering a fire source is, of course, a fire extinguisher. Thanks to a fire extinguisher it becomes...
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Sources of optical radiation (in other words, sources of light) are many natural objects, as well as artificially created devices, in...
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If an analog signal is continuous, then a digital signal is a signal that is a sequence of discrete (clearly separated in magnitude and...
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Heike Kamerling-Ones, a Dutch physicist and chemist, was the first to encounter the phenomenon of superconductivity. The year of discovery of the phenomenon is...
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Electromagnetic radiation with a wavelength of 0.74 microns to 2 mm is called in physics infrared radiation or infrared...
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