1, it takes special courage to pursue science.

2. Truth has such power. The more you want to attack it, the richer your attack will be and prove it.

The truth of science should not be found in the dusty books of ancient sages, but in experiments and theories based on experiments.

If scientists are intimidated by power, science will become cartilage patients.

The only purpose of science is to alleviate the pain of human existence, and scientists should think for most people.

6. Life is like an anvil. The more you are beaten, the more sparks will come from generate.

Galileo's main contribution

1, mechanics

Galileo was the first scientist to introduce experiments into mechanics. He determined some important mechanical laws through the combination of experiment and mathematics. Galileo made a detailed study on the basic concepts of motion, including center of gravity, speed and acceleration, and gave a strict mathematical expression. Especially the concept of acceleration is a milestone in the history of mechanics.

2. Astronomy

He was the first scientist who made great achievements in observing celestial bodies with a telescope. These achievements include: the discovery that the surface of the moon is uneven, Jupiter has four satellites (now called Galileo satellites), the rotation of sunspots and the sun, the profit and loss of Venus and Jupiter, and the Milky Way is composed of countless stars. He confirmed Copernicus's "theory of earth movement" with experiments, and completely denied Aristotle and Ptolemy's "theory of earth movement" which ruled for more than 1000 years.

3. Philosophy

Throughout his life, he insisted on fighting idealism and scholasticism, and advocated using concrete experiments to understand the laws of nature, believing that experiments were the source of theoretical knowledge. He denied the existence of absolute truth and absolute authority to master the truth in the world, and opposed blind superstition. He acknowledged the objectivity, diversity and infinity of the universe. These viewpoints are of great significance to the development of materialist philosophy.

4. Heat

The earliest thermometer was invented by Italian scientist Galileo (1564 ~ 1642) in 1593.

5, the principle of relativity

On the basis of discovering the law of inertia, Galileo put forward the principle of relativity: the laws of mechanics are equivalent in all inertial coordinate systems. For the static inertial system and the moving inertial system, the mechanical process is exactly the same.