What law did the Italian physicist and astronomer Galileo Galilei discover?

Galileo. He is a great Italian physicist and astronomer, a pioneer of the scientific revolution, and one of the founders of modern experimental science.

Galileo summarized the law of free fall, the law of inertia, from experiments.

and Galileo's theory of relativity.

principle, which works for Newton.

The foundation was laid for the establishment of a theoretical system. He designed and manufactured pendulum clocks, astronomical telescopes, hydrostatic balances, hydrometers, thermometers, pendulum clock pulsometers, etc.

Historically, he first integrated the knowledge of mathematics, physics, and astronomy on the basis of scientific experiments, and expanded, deepened, and changed mankind's understanding of matter and the movement of the universe. Galileo summarized the law of free fall, the law of inertia, and the principle of Galileo's theory of relativity from experiments. It overturned many of the assumptions of Aristotelian physics and laid the foundations of classical mechanics.

Galileo advocated a combination of mathematical and experimental research methods, which was the source of his great scientific achievements and his most important contribution to modern science. Galileo's scientific development in the 17th century.

and worldview. Experimental science, which began with Galileo and Newton, was the beginning of modern natural science.

Through systematic experiments and observations, he overthrew the traditional purely speculative view of nature and founded a modern science based on experimental facts and a strict logical system. As a result, he is known as the father of modern mechanics and modern science. His work laid the foundation for the establishment of Newton's theoretical system.

Throughout his life, he persisted in opposing the idealism of the Church.

and scholasticism, which advocated the use of concrete experiments to understand the laws of nature, and believed that experience was the source of theoretical knowledge. He denied the existence of absolute truth and the absolute authority to grasp it, and opposed blind superstition. He acknowledges the objectivity of matter, the diversity and infinity of the universe, which is essential to materialism.

The development of philosophy is of great significance. However, due to the limitations of history, he emphasized that only material properties that can be summarized as quantitative characteristics can exist objectively.

The above is only a personal opinion, if you have any questions, please feel free to add!

He was an Italian physicist and mathematician who discovered the law of isochronism of pendulums, and then created astronomical telescopes, discovered many astronomical phenomena, laid the theoretical foundation for Newton's theoretical system, and discovered the law of free fall.

The law of free fall was proposed, the law of motion was proposed, the law of inertia was proposed, and the principle of Galilean relativity was also proposed. He also created astronomical telescopes and also demonstrated heliocentrism, which are the laws he discovered.

The law of free fall, the law of pendulum, the principle of isochronism of pendulums, these laws were discovered by astronomer Galileo.

The law of free fall. It means that objects of the same mass fall from the same height and fall for the same time.

Galileo summarized the law of free fall, the law of inertia, and Galileo's principle of relativity from experimentsThus, it overturned many assumptions of Aristotelian physics, laid the foundation of classical mechanics, refuted Ptolemy's geocentric system, and strongly supported Copernicus's heliocentric theory.

He overthrew the purely speculative traditional view of nature with systematic experiments and observations, and created modern science based on experimental facts and a rigorous logical system, so he was known as the "father of modern mechanics" and "the father of modern science", and his work laid the foundation for the establishment of Newton's theoretical system.

Major contributions. 1. Mechanics.

Galileo was the first scientist to introduce experiments into mechanics, and he used a combination of experiments and mathematics to determine some important laws of mechanics, and Galileo was the first person in history to quantify dynamics. From 1589 to 1591, he made detailed observations of the free-falling motion of objects, experimentally and theoretically refuting Aristotle's view of falling motion (heavy objects fall faster than light objects) that ruled for two thousand years.

2. Astronomy.

Galileo was the first scientist to use a telescope to observe celestial bodies and achieve a large number of results.

Galileo was the first to observe the rings of Saturn, sunspots, the mountains of the moon, the waxing and waning phenomena of Venus and Mercury, the moons of Jupiter and the circumferential phases of Venus, and summarized the law of free fall, the law of inertia and Galileo's principle of relativity from the experiment, thus overturning many assumptions of Aristotelian physics, laying the foundation of classical mechanics, refuting Ptolemy's geocentric system, and strongly supporting Copernicus's heliocentric theory.

3. Philosophy. Throughout his life, Galileo insisted on fighting against the scholasticism of the Church, advocating the use of concrete experiments to understand the laws of nature, believing that experiments were the source of theoretical knowledge, he did not recognize the absolute truth in the world and the absolute authority to grasp the truth, and opposed superstition and blind obedience.

Galileo discovered the laws of motion, the law of falling, the law of inclined planes.

What laws Galileo discovered are broken down as follows:

1. The law of motion: When Galileo observed the motion of an object, he found that the object would maintain a uniform linear motion or rest without the action of external forces. This is known as Galileo's law of inertia or the first law of motion.

2. The law of falling: Galileo conducted a series of real-world experiments on falling bodies, and found that the acceleration of free fall of objects of different masses and shapes is constant and independent of the mass of the object in the absence of air resistance. This is known as Galileo's law of falling bodies or the second law of motion.

3. The law of inclined plane: Galileo studied the law of sliding objects on inclined planes, and found that the acceleration of sliding objects on inclined planes is related to the angle of inclined planes, and the acceleration has nothing to do with the mass of the object when friction is ignored. This is known as Galileo's law of bevel.

Galileo studied velocity and acceleration, gravity and free fall, the theory of relativity, inertia, the principles of projectile motion, and engaged in applied science and technology, described the nature of pendulums and "hydrostatic equilibrium", invented thermometers and various military compasses, and used telescopes for scientific observations of Kiritaka astronomy. His contributions to observational astronomy include the confirmation of Venus's phases using telescopes, the discovery of Jupiter's four largest moons, the observation of Saturn's rings, and the analysis of sunspots.

Galileo's invention

What Galileo invented is broken down as follows:

1. Astronomical telescopes: Galileo Galilei improved the telescope to make it an effective tool for astronomical observations. He used a telescope to observe celestial phenomena such as mountains on the surface of the moon, the moons of planets, and the composition of galaxies, thus supporting Copernicus's heliocentric theory and laying the foundation for the development of modern astronomy.

2. Thermometer: The air thermometer is an instrument invented by Galileo Galileo according to the phenomenon of thermal expansion and contraction of gases. Also known as "Galileo thermometer", it refers to a tool developed for measuring temperature based on the principle of thermal expansion and contraction of matter, which has been improved several times to become a commonly used temperature measuring device today.

3. Proportional gauge: The "proportional gauge" was invented by using the principle of proportionality of the corresponding sides of similar triangles, which can be used to calculate multiplication, division, proportion, etc.

Galileo discovered the law of the free denier leakage.

Galileo did it at the Leaning Tower of Pisa"Two iron balls hit the ground at the same time"The experiment concluded that two iron mold balls with different weights fell at the same time. Galileo Galilei rolled a copper ball off an inclined plane with little resistance to counting, and experimentally proved that the motion of the ball was a linear motion with uniform velocity. From the experiments, the law of free fall, the law of inertia and Galileo's principle of relativity are summarized.

Galileo Galilei was a famous Italian scientist who made outstanding contributions to the field of mechanics. He discovered many laws, the most famous of which are the "law of free fall" and the "law of inertia". The law of free fall states that when there is no air resistance, all objects fall freely under the influence of gravity with the same acceleration, and this acceleration is known as gravitational acceleration (about meters and seconds squared).

The law of inertia states that objects will remain unchanged according to their motion, i.e., objects at rest will remain stationary, while objects in motion will remain in a straight line at a uniform speed, unless an external force acts on them. Galileo also discovered the existence of friction and explored physical questions about inclined planes, levers, etc. His research laid the foundation for Newton's revolution in mechanics and had a profound impact on the development of modern physics.

In 1590, Galileo Galilei did an experiment on the Leaning Tower of Pisa where "two iron balls hit the ground at the same time", and came to the conclusion that two iron balls of different weights fell at the same time, thus overturning Aristotle's theory that "the falling speed of an object is proportional to its weight", and correcting this erroneous conclusion that lasted for more than 1,900 years.

But this is unlikely, objects of different weights can only land at the same time under vacuum, and the law of free fall was proved when American astronaut David Scott tried to drop a feather and an iron hammer at the same height at the same height after landing on the moon, and found that they landed at the same time.

Even if Galileo did do this experiment, it was limited to the level of technology at the time, so it "seemed" to land at the same time. Regarding the free fall experiment, Galileo did a lot of experiments, he stood on top of the leaning tower and made objects of different materials fall from the top of the tower, and measured the difference in the time of falling.

It was found that all kinds of objects landed at the same time, in no particular order. In other words, the falling motion is not related to the specific characteristics of the object. Regardless of whether the ball is wooden or iron, if it starts falling from the tower at the same time, they will reach the ground at the same time.

Through repeated experiments, Galileo believed that the free fall velocity of light and heavy objects is the same, that is, the magnitude of gravitational acceleration is the same, regardless of air resistance.

Extended Materials. The formula about acceleration due to gravity can be deduced using Newton's law of universal gravitation.

When an object above the earth takes the center of the earth as the reference point to describe its motion, it is moving in a uniform circle around the earth, and the resultant external force experienced by the object in the direction of the line with the center of the earth is a centripetal force pointing to the center of the earth, and this centripetal force is provided by the gravitational force between the object and the earth, i.e. f direction = f million, according to Newton's second law formula followed by the centripetal force: f = mg and the formula of the law of gravitation

1. The law of free fall.

2. Pendulum Law.

After a long period of experimental observation and mathematical calculation, he obtained the law of isochronism of the pendulum. Experimentally and theoretically, Aristotle, who ruled for more than a thousand years, rejects the "law of falling motion" and establishes the correct "law of free fall". Galileo informally proposed the laws of inertia (see Newton's laws of motion) and the laws of motion of objects under the action of external forces, which was the official formulation of motion by Newton.

The first and second laws laid the foundation. In the creation of classical mechanics, Galileo can be said to be the forerunner of Newton. Galileo also proposed the law of resultant force, the law of projectile motion, and established Galileo's principle of relativity.