A Beginner's View of Our Electric Universe - New
A Beginner's View of Our Electric Universe - New
A Beginner's View of Our Electric Universe - New
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Dark Mode: (Low Energy)<br />
•<br />
•<br />
•<br />
•<br />
•<br />
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 />
•<br />
•<br />
•<br />
•<br />
•<br />
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 />
•<br />
•<br />
•<br />
•<br />
•<br />
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