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Basics of Physics Part-I

Physics is the branch of natural science that studies the nature and properties of matter and energy.The term ‘physics’ is derived from the Ancient Greek word i.e. ‘phusikḗ’ meaning ‘knowledge of nature’.


Physics includes mechanics, heat & thermodynamics, optics, sound, electricity, magnetism, etc.

Development of Physics : 
The development of physics took place with the development of astronomy. Scientist Ibn Al-Haitham revolutionized the concept of physics, he had written a book in seven volumes namely “Kitāb al-Manāẓir “also known as “The Book of Optics.” He also introduced Concept of vision and introduced a new theory and later Concept of the pinhole camera.

These modern scientists had been introduced different concepts of physics and discovered and invented many new technologies. Copernicus replaced the ancient view of geocentric model and introduced the heliocentric concept; Galileo invented the telescopes, Newton discovered the laws of motion and universal gravitation, etc.

The era of modern physics came with the discovery of quantum theory by Max Planck and theory of relativity by Albert Einstein. After development of modern physics, the ear of applied physics commenced where emphasis is given on ‘research’ on a particular use. The particle physicists have been consistently designing and developing the high energy accelerators, detectors, and computer programs. 

Nuclear physics is another branch of modern physics that studies the constituents and interactions of the atomic nuclei.The most widely known inventions and applications of nuclear physics are the generation of nuclear power and the development of nuclear weapons technology. At present, the physic scientists are working on the concept of high-temperature superconductivity.

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