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Physics basics real world

What are the chances that one or another theoretical study wiU be a success As history shows, it greatly depends on whether theorists can think of a nice, manageable model idealizing the real world. Of course, there are no ideally simple systems in nature. However, we can use our imagination and invent an ideal gas (whose molecules do not interact at all), an ideal crystal (with no defects at all to the regular atomic structure), and so on. As a matter of fact, you can say that all these models are ideal indeed, meaning that they are the best for physicists. This is because they are the simplest — but they are simultaneously the most basic ones. So one has to master them first, before moving any further in either statistical mechanics, or hydrodynamics, or solid state physics, or whatever chapter of physics. [Pg.147]

While the basic chemistry and physical behavior of linear polysiloxane polymers is well studied and, generally speaking, well understood, simple unmodified polysiloxanes are rarely encountered in real world applications. The majority of commercial silicone products are complex multicomponent formulations which take the form of elastomeric rubbers, adhesives, sealants, coatings, fluids or gels. Silicone elastomers are chemically crosslinked networks of linear polysiloxanes which exhibit poor mechanical properties in their native, unmodified state [1]. In order to obtain the desired combinations of mechanical, physical and chemical properties for a specific application, commercial high-performance silicone elastomers... [Pg.191]

As you read on in this book, you will find, perhaps to your disappointment, that only limited portions of each chapter provide direct answers to real-life questions. An introductory chemistry text, such as this one, must focus instead on teaching basic principles and skills. Some of the things you need to learn in order to understand chemistry may seem less than fascinating, and it will not always be easy to see why they are useful. Try to remember that the fundamental concepts and skills will soon lead you to a deeper understanding of the physical world. [Pg.4]


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See also in sourсe #XX -- [ Pg.88 ]




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Physics basics

Real world

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