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A Beginner's View of Our Electric Universe - New

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Dark Mode: (Low Energy)<br />

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A household ‘Ioniser’ for air purification.<br />

The flow <strong>of</strong> electric current during the ‘Electro-Plating’ process.<br />

The beam <strong>of</strong> electrons that flows inside the Cathode Ray Tube <strong>of</strong> a television.<br />

The flow <strong>of</strong> electric current in your body that you feel as a shock when you touch a live wire.<br />

The flow <strong>of</strong> electric current through the Liquid Crystal Display <strong>of</strong> a computer screen.<br />

Glow Mode: (Medium Energy)<br />

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The action inside a neon tube when its gas is stimulated to give <strong>of</strong>f light.<br />

The glowing filaments you see inside a decorative Plasma Ball.<br />

The glow that results on the screen <strong>of</strong> a Cathode Ray Tube when it displays visible images.<br />

The glow given <strong>of</strong>f from a Comet’s tail.<br />

The Aurora we see in the sky over the North and South Poles.<br />

Arc Mode: (High Energy)<br />

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The Lightning we see during an <strong>Electric</strong> Storm.<br />

The blinding glow we should not look at when <strong>Electric</strong> Arc Welding is being done.<br />

Action in the Sun’s Photosphere and on other stars as they give <strong>of</strong>f brilliant light and heat.<br />

The brightly glowing areas that erupt on Comet surfaces as they get close to the Sun.<br />

The spark that is generated by the Spark-Plugs in your car engine to ignite the fuel.<br />

These are all examples <strong>of</strong> plasma with different levels <strong>of</strong> voltage pressure applied and different levels <strong>of</strong> current<br />

density flowing through it. We cannot ‘see’ electric current flow, we can only see the effects <strong>of</strong> it. If there is a<br />

large amount <strong>of</strong> energy involved then we need to take care because the photon energy given <strong>of</strong>f as radiation<br />

can be significantly dangerous for us. A good example <strong>of</strong> this is with electric arc welding. Here, high-energy<br />

photons are radiated away because powerful electric currents flow that melt metal. This EM radiation is in the<br />

form <strong>of</strong> ultra-violet rays and X-rays, both <strong>of</strong> which can seriously damage our eyes and other body tissues.<br />

5 | Some basic theory that will help

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