Physical Science

Time is definitely real, only our experience of time is subjective. We can observe this by focusing on how we perceive time – distinguishing two events. We use all our senses to distinguish events and hence experience time. When a…
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The simplest rocket motor, and the first, is the black powder engine. Developed in China around 1000 AD, the black powder rocket involves little more than a tube filled with gunpowder and a clay nozzle to speed up the exhaust…
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Metamaterials and electromagnetic fields belong together, but before any conclusive statements can be made concerning how they react, individual introductions must first be made: *Metamaterials are specially designed materials purposely created to interact with electromagnetic waves. According to Materials Science…
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Relativity, The Special and the General Theoryby Albert Einstein (1920), with an introduction by Niger Calder (2006)Publisher: Penguin Classics Science fiction is based in science possibility, and some scientists have tried to help the general population, students, and the interested…
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The Buzz About Electromagnetic Fields Continues None of us has ever seen, heard, or, at the very least, felt electromagnetic fields. But wherever electric current runs, we can be sure electromagnetic fields are present. Not a few people have expressed…
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Electromagnetic fields permeate our lives.Whether the natural or artificial form,the represent the invisible forces that produces far reaching effects in many situations.Generally,they represent field of forces consisting of superimposed electric and magnetic fields,and generated by charged particles such as an…
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Have you ever asked yourself these questions? Is it time travel possible?If it is what would happen if you changed something in the past? The English mathematician, Stephen Hawking once proposed a very interesting question on Time Travel. He asked:…
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Time Travel: Is It Possible? Most people have lived their life without stopping and thinking about what time really is. But most people have heard of time travel from watching sci-fi movies. And now the question is: Are those time…
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The protons and neutrons in the core, or nucleus of atoms are held together by the so-called strong nuclear force. This is one of the fundamental forces of nature and is called strong because it can overcome the great electromagnetic…
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Nuclear reactors utilize fission to produce heat.  That heat is used to raise the temperature of boiling water to produce steam to turn gigantic turbines that produce electricity.  A special kind of reactor is able to serve two functions instead…
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