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Download History and Evolution of Concepts in Physics by Harry Varvoglis PDF

By Harry Varvoglis

Our knowing of nature, and specifically of physics and the legislation governing it, has replaced greatly because the days of the traditional Greek common philosophers. This ebook explains how and why those alterations happened, via landmark experiments in addition to theories that - for his or her time - have been progressive. The presentation covers Mechanics, Optics, Electromagnetism, Thermodynamics, Relativity thought, Atomic Physics and Quantum Physics. The booklet areas emphasis on principles and on a qualitative presentation, instead of on arithmetic and equations. hence, even if essentially addressed to those that are learning or have studied technological know-how, it could even be learn by means of non-specialists. the writer concludes with a dialogue of the evolution and association of universities, from precedent days till this day, and of the association and dissemination of information via clinical courses and conferences.

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2 The motion of falling bodies according to Galileo: in contrast to Aristotle’s theory (see Fig. 3), all bodies are falling with the same acceleration (drawing by author) motion and wrote the first draft of his tutorial notes on mechanics, which he completed and published in books (Mechanics in 1600 and Dialogues and Mathematical Proofs Concerning Two New Sciences in 1638) during the second and third period of his life. It is said that Galileo disproved the Aristotelian theory of motion of bodies with an experiment, during which he dropped from the top of the Tower of Pisa bodies of same volume but different densities.

26 3 From Classical Era to the Renaissance been regarded by several authors as a precursor of Galileo. Unfortunately, the ideas of John Philoponus fell into obscurity because, apart from natural philosophy, he was also involved in theology. Within the framework of theology, Philoponus supported the view that the divine nature of Jesus prevailed over the human one. For this reason, he was accused of being follower of the sect of Monophysites and was anathematized by the sixth Ecumenical Council in 680 AD.

As we shall see in Sect. 2, within the framework of general relativity, the trajectory of a body is curved not because a force is acting on it, but because the space in which it moves is curved. In quantum mechanics, the concept of motion—and therefore the concepts of position and velocity as well—has been replaced by the concept of the probability that a particle will be observed in a specific place at a particular time. Finally, according to Ockham’s razor, it is preferable to have a theory based on fewer than three axioms.

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