What aspects of physics did Newton contribute

Three fundamental laws of motion of objects (Newton's Three Laws):

The first law (i.e., the law of inertia).

Any object that is not in equilibrium with any external force or force (fnet=0) always maintains a uniform linear motion or a state of rest until an external force acting on it forces it to change this state.

The Second Law. Newton's second law is the law of instantaneous action of force. Force and acceleration are generated, changed and dissipated at the same time.

f=ma is a vector equation, the positive direction should be specified when applying, all forces or accelerations with the same positive direction are taken as positive values, and negative values are taken otherwise, and the direction of acceleration is generally taken as the positive direction.

According to the principle of independent action of forces, when Newton's second law is used to deal with the problem of the motion of an object in a plane, the forces on the object can be orthogonally decomposed, and the component forms of Newton's second law can be applied in two mutually perpendicular directions: fx=max, fy=may.

The Third Law. The expression f=-f'(f denotes the applied force, f.)'denotes the reaction force, and the minus sign indicates the reaction force f'in the opposite direction of the force f).

Sir Isaac Newton was the greatest and most influential scientist in human history, as well as a physicist, mathematician and philosopher, who in his later years became fascinated by alchemy and theology. In his monumental work "The Mathematical Principles of Natural Philosophy", published on July 5, 1687, he mathematically expounded the most basic laws of the universe - the law of universal gravitation and the three laws of motion. These four laws formed a unified system and were considered "the greatest achievement in the history of human intelligence", thus laying the foundation for the scientific outlook of physics for the next three centuries and becoming the foundation of modern engineering.

Newton established the banner of "rationalism" for mankind and opened the door to the Industrial Revolution. Newton was buried in Westminster Abbey after his death, becoming the first scientist to be buried here.

Newton, a famous British physicist and mathematician, was an encyclopedic "all-rounder". He is the author of "Mathematical Principles of Natural Philosophy".

Optics" and so on. In his 1687 Laws of Nature, Newton systematically described gravitation and the three laws of motion. These descriptions laid the foundation for the scientific view of the physical world for the next three centuries and became the basis of modern engineering.

In mechanics, Newton expounded the principle of conservation of momentum and angular momentum, and proposed Newton's three laws of motion and the law of universal gravitation.

Optically, he invented the reflecting telescope and developed a theory of color based on the observation that a prism diverges white light into the visible spectrum.

In mathematics, Newton and Leibniz.

shared the honor of founding calculus. He also proved the generalized binomial theorem, proposed the "Newtonian method" to approximate the zero point of a function, and contributed to the study of power series.

Newton is by far the greatest physicist in the world (there is no one).

In physics, Newton made great achievements in mechanics, heat, optics and other aspects. Newton was the pioneer of the theory of classical mechanics. On the basis of the work of Galileo and others, he conducted in-depth research, and after a large number of experiments, summed up the three laws of motion and created the classical mechanics system.

Newton's study of the laws of mechanical motion was first and foremost based on an absolute view of time and space. Absolutized time and absolutized space refer to time and space that are not affected by the state of motion of objects. Two observers in a state of uniform motion have the same measurement of mechanical motion.

In a state of high-speed motion, this view of space-time can no longer be adopted, and at this time (the speed of motion is comparable to the speed of light), Newtonian mechanics will be replaced by relativistic mechanics. In the microscopic case, Newtonian mechanics will be replaced by quantum mechanics because the wave nature of the particles has been clearly manifested. Another great contribution of Newton to mechanics was the discovery of the law of universal gravitation based on the work of Kepler and others.

Newton believed that the forces with which the sun attracts planets, planets that attract moons, and everything on the ground are forces of the same nature. Newton proved by calculus that if the radius of any curvilinear motion of a mass points to a point moving in a straight line at rest or at a uniform speed, and it sweeps around the secondary point an area proportional to time, the point must be subject to the centripetal force directed at that point, and if the square of the period around it is proportional to the cube of the radius, then the centripetal force is inversely proportional to the square of the radius.

Newton also identified a series of basic concepts in the development of mechanics, such as mass, momentum, inertia and force. Through Newton's work, mechanics has formed a rigorous, complete and systematic scientific system.

Newton's significant contributions to world physics were:

1. Establish Newtonian mechanics on the basis of Newton's three laws of motion.

2. Discover the law of gravitation.

3. Establish the basis of the theory of the law of planetary hailstorms.

4. Committed to the research of Mitsubishi mirror dispersion envy and brother Yanyan's invention of the reflective telescope.

5. Discover the binomial theorem and calculus of mathematics.

6. The origin of modern atomic theory, etc.

Newton's significant contributions to world physics were:

1. Establish Newtonian mechanics on the basis of Newton's three laws of motion.

2. Discover the law of gravitation.

3. Establish the basis of the theory of planetary laws.

4. Committed to the research of Mitsubishi mirror dispersion and the invention of reflecting telescope.

5. Discover the binomial theorem and calculus of mathematics.

6. The origin of modern atomic theory, etc.