What is Physics?

Physics is a key part of science and technology; Physics is used to solve problems and understand how the world works in every detail at the deepest level. An understanding of physics helps to solve environmental, social, health and technological challenges. Physics is at the heart of everything, from the tiniest building blocks of all materials up to the largest scales possible: in elementary particles, nuclei, atoms, molecules, macromolecules, living cells, solids, liquids, gases, plasmas, living organisms, the brain, complex systems, supercomputers, the atmosphere, planets, stars, galaxies and the universe itself. For careers in engineering and technology physics is essential. Physicists may be roughly divided into two camps: experimental physicists and theoretical physicists. Experimental physicists design and run careful investigations on a broad range of phenomena in nature, often under conditions which are typical of our everyday lives. or measure the characteristics of energy emitted by very hot gases. Theoretical physicists propose and develop models and theories to explain mathematically the results of experimental observations.

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