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Modern physics began in the early 20th century with the work of Max Planck in quantum theory and Albert Einstein's theory of relativity.
While the explanations for these phenomena were often unscientific and lacking in evidence, these early observations laid the foundation for later astronomy.all fundamental particles predicted by the standard model, and no others, appear to exist; however, physics beyond the Standard Model, with theories such as supersymmetry, is an active area of research.In many ways, physics stems from ancient Greek philosophy.By the 19th century, physics was realised as a discipline distinct from philosophy and the other sciences.Physics, as with the rest of science, relies on philosophy of science and its "scientific method" to advance our knowledge of the physical world.while Greek poet Homer wrote of various celestial objects in his Iliad and Odyssey; later Greek astronomers provided names, which are still used today, for most constellations visible from the northern hemisphere.
Natural philosophy has its origins in Greece during the Archaic period, (650 BCE – 480 BCE), when pre-Socratic philosophers like Thales rejected non-naturalistic explanations for natural phenomena and proclaimed that every event had a natural cause.From Thales' first attempt to characterise matter, to Democritus' deduction that matter ought to reduce to an invariant state, the Ptolemaic astronomy of a crystalline firmament, and Aristotle's book Physics (an early book on physics, which attempted to analyze and define motion from a philosophical point of view), various Greek philosophers advanced their own theories of nature.Physics was known as natural philosophy until the late 18th century.Using dissections and the knowledge of previous scholars, he was able to begin to explain how light enters the eye.He asserted that the light ray is focused, but the actual explanation of how light projected to the back of the eye had to wait til 1604.From this, such important things as eyeglasses, magnifying glasses, telescopes, and cameras were developed.