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A Simple Guide - Synopsis. One of the most brilliant and well-known scientists of all time, Albert Einstein, said, "If you can't explain it simply, you don't understand it well enough." Tony Harris proves with this concise guide that he does understand his subject matter very well indeed. The book he has written will inspire a whole new generation of scientists - a generation that will span all age groups.A Simple Guide to Popular Physics does exactly what the title promises - it delves into the mind-boggling world of particles, quantum physics and cosmology in a clear and user-friendly way. Inspired by Professor Brian Cox's statement that his simple action of rubbing a diamond between his hands had altered every electron in the entire universe, Tony Harris took it upon himself to delve further into the subject, exploring Pauli's Exclusion Principle - the principle that no two electrons can be in the same quantum state in atoms - that Professor Cox had been introducing to the millions of people watching his TV presentation. Intrigued and, by his own admission, more than a little sceptical, Tony researched the principle and revised his own understanding of it, realising that by questioning Professor Cox's statement, he had increased his knowledge base substantially. And that is what led to this book.Have you ever asked yourself why, if the atoms that make up all matter consist mainly of empty space, structures don't collapse and you don't fall through your living room floor? A