This circuit tells you how much radiation is coming from electric devices. It picks up the AC hum from the surroundings of electric equipment and electric wiring and blinks the LED to show the radiation level. You can also use this to assess the safe distance from Computer radiation.
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This is my circuit published in Electronic For You September 2009 issue. This circuit detects the Range of Electronic Smog emanating from the CRT monitor of the Computer.This circuit helps to assess the range of radiation from the monitor through LED indications.Pulsations of PEMR ( Pulsed Electro Magnetic Radiation) can be visualized through the flashing of LEDs.Circuit diagram and description as images.Click on the images to see enlarged view.
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Electromagnetic waves are emitted by many natural and man made sources and play an important part in our lives. We are warmed by the electromagnetic emissions of the sun and we see using the part of the electromagnetic spectrum that our eyes detect as visible light. When you sit in front of a computer or television, you are being bombarded by harmful waves quietly emanating from it. Even if you turn off the device, your biomagnetic field is still bombarded 24 hours a day, 7 days a week by the EM radiations from power cables, electric and electronic instruments.
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