15 Facts About Classical mechanics

Classical mechanics is a physical theory describing the motion of macroscopic objects, from projectiles to parts of machinery, and astronomical objects, such as spacecraft, planets, stars, and galaxies.

Classical mechanics provides extremely accurate results when studying large objects that are not extremely massive and speeds not approaching the speed of light.

Classical mechanics uses common sense notions of how matter and forces exist and interact.

Classical mechanics describes the more complex motions of extended non-pointlike objects.

Many branches of classical mechanics are simplifications or approximations of more accurate forms; two of the most accurate being general relativity and relativistic statistical mechanics.

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Statistical Classical mechanics describes the behavior of large numbers of particles and their interactions as a whole at the macroscopic level.

Statistical mechanics is mainly used in thermodynamics for systems that lie outside the bounds of the assumptions of classical thermodynamics.

Classical mechanics is the same extreme high frequency approximation as geometric optics.

Classical mechanics concluded, based on Tycho Brahe's observations on the orbit of Mars, that the planet's orbits were ellipses.

In Classical mechanics, Newton was the first to provide the first correct scientific and mathematical formulation of gravity in Newton's law of universal gravitation.

Classical mechanics demonstrated that these laws apply to everyday objects as well as to celestial objects.

Newton, and most of his contemporaries, with the notable exception of Huygens, worked on the assumption that classical mechanics would be able to explain all phenomena, including light, in the form of geometric optics.

Lagrangian Classical mechanics was in turn re-formulated in 1833 by William Rowan Hamilton.

When combined with thermodynamics, classical mechanics leads to the Gibbs paradox of classical statistical mechanics, in which entropy is not a well-defined quantity.

Classical mechanics is a theory useful for the study of the motion of non-quantum mechanical, low-energy particles in weak gravitational fields.