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The Earth sciences are discussed in a separate article.
Physics, in its modern sense, was founded in the mid-19th century as a synthesis of several older sciences—namely, those of mechanics, optics, acoustics, electricity, magnetism, heat, and the physical properties of matter.
Believing that the order of the cosmos is fundamentally mathematical, they held that it is possible to discover the harmonies of the universe by contemplating the regular motions of the circular motion.
That is to say, he urged them to develop predictively accurate theories using only combinations of uniform circular motion.
Chemists tend to be more interested in the specific properties of different elements and compounds, whereas physicists are concerned with general properties shared by all matter.
( chemistry: The history of chemistry.)Astronomy is the science of the entire universe beyond Earth; it includes Earth’s gross physical properties, such as its mass and rotation, insofar as they interact with other bodies in the solar system.
Physical science, the systematic study of the inorganic world, as distinct from the study of the organic world, which is the province of biological science.
calendar of 365 days, consisting of 12 months of 30 days each and five additional festival days at the end of each year.His theory required four homocentric spheres for each planet and three each for the Sun and Moon.The Aristotle, in formulating his cosmology, adopted Eudoxus’s homocentric spheres as the actual machinery of the heavens.In the 20th century physics and astronomy became more intimately linked through cosmological theories, especially those based on the theory of relativity.( Physical science, like all the natural sciences, is concerned with describing and relating to one another those experiences of the surrounding world that are shared by different observers and whose description can be agreed upon.