What is the law of universal gravity?
The law of universal gravity is a necessary principle of physics. He was first codified by Sir Isaac Newton in the 16th century. The Universal Gravity Act states that all objects are attracted to each other by gravity; The power of attraction depends on the weight of the objects and decreases on the basis of the distance between them. Newton's discovery was replaced by Einstein's theory of general relativity. However, it is still accurate for most practical applications.
Newton did not discover gravity as the popular faith adheres, but has spread to the work of former scientists like Galileo. Newton mentioned these scientists when he wrote perfectly, "If I saw further, it's because they stand on the shoulders of the giants." The apple's fall inspired Newton to study the subject of gravity; Apple, however, did not bring immediate understanding by hitting his head. Instead, he used the monthly orbit around the Earth to check and confirm its calculations for 20 Letius. The Universal Gravity Act has been described in detail in its pioneering book Mathematic principleand , published in 1687.
Newton's book included mathematical formulas describing the law of universal gravity. The law basically states that all objects develop a gravitational move on all other objects. Objects with large matter have stronger areas of gravity or gravitational fields, and therefore objects and people are attracted to the ground, but not noticeably together. Gravitational move decreases as the distance increases; This decline can be measured precisely and is known in physics as an inverse square law. Universal gravity is a force that maintains planets and satellites locked in orbit rather than freely traveling around the universe.
In the centuries of Newton's life, the Law of Universal Gravitacets and Natural Satellites that have not yet been discovered have been used to predict the plane. The eventual discoveries of these celestial bodies confirmed that the law was correct. One aspect of the law that Newton could not have inTo glance was how the gravitational force was transmitted to the objects. Other basic forces, such as electromagnetism, work because subatoma particles travel between objects and attract them together. A similar particle for the transmission of gravity, graviton, has been described theoretically, but remains undiscovered for more than 300 years after Newton's work.
In the 20th century, scientists discovered minor discrepancies in the law of universal gravity. These inconsistencies were explained by Einstein's theory of general relativity. Einstein realized that the masses of heavenly bodies actually affect not only each other but also the structure of the space around them. These effects are only evident in very accurate measurements and calculations. For practical applications such as Rocket, the law of universal gravity is still accurate and much easier to calculate than the effects of relativity.