Regarding the number of people who questioned the case, the speed !!!

1.If you learn without thinking, you will be reckless, and if you think without learning, you will die. (Confucius).

1.Dai Zhen, a scholar and thinker in the Qing Dynasty, asked Zhu Xi when he was a person and how he knew about it more than 2,000 years ago when his teacher explained the "University Chapters and Verses".

2.Newton's thinking about the apple landing proposed the law of gravitation.

Galileo boldly questioned Aristotle's doctrine and proved through experiments that his views were not correct and that his own ideas were correct.

Aristotle of Greece believed that objects fall differently and slowly. The speed at which it falls is directly proportional to its weight, and the heavier the object, the faster it falls. For example, an object weighing 10 kg will fall 10 times faster than an object weighing 1 kg.

For more than 1,700 years, people have regarded this doctrine, which is contrary to the laws of nature, as an unquestionable truth. The young Galileo, reasoning from his own experience, boldly questioned the doctrine of Aristotle. After much deliberation, he decided to do a hands-on experiment.

He chose the Leaning Tower of Pisa as his testing ground.

On this day, he brought two iron balls of the same size but different weights, one weighing 100 pounds and being solid; The other weighs 1 pound and is hollow. Galileo stands on top of the Leaning Tower of Pisa and looks down. The tower was full of people who came to **, and everyone was talking.

Someone sarcastically said, "This young man must have a sick nerve!" Aristotle's theory can't be wrong!

The experiment began, and Galileo took an iron ball in each hand and shouted: "People below, you can see clearly, the iron ball is about to fall." With that, he opened both hands at the same time.

It was seen that two iron balls fell parallel to each other, almost simultaneously on the ground. Everyone was dumbfounded.

Galangelio's experiments revealed the secret of the motion of the falling body and overthrew Aristotle's doctrine. This experiment is of epoch-making significance in the history of physics.

Copernicus created the great theory of "heliocentrism" and declared the complete bankruptcy of "Manifest Destiny". After a long period of astronomical observation and research, Copernicus created a more scientific system of cosmic structure - heliocentrism, which has since denied the geocentric theory that has ruled the West for more than 1,000 years. The heliocentric theory was accepted after a hard struggle, and it was a great revolution in astronomy, which not only caused a major revolution in the human cosmology, but also fundamentally shook the theoretical pillars of medieval European religious theology.

Newton proposed the law of universal gravitation.

1.When SARS first came out, many medical authorities in China believed that it was chlamydia virus, but Academician Zhong Nanshan made another discovery, he boldly questioned and repeatedly insisted on his own point of view, believing that it was the coronavirus, which made great contributions to the rapid diagnosis and treatment of patients at that time.

2.In the famous Leaning Tower of Pisa experiment, in order to insist on the truth, Galileo challenged Aristotle, the authority of the time, to prove his point of view: two objects of different weights fell from the same height and landed on the ground at the same time.

3.The Americans Adam and Jimmy, who once questioned Archimedes' use of mirror reflection to burn the Roman warship, went to the experiment again, and found that the Roman warship was not burned, but the Roman commander found that the temperature of the warship had risen very high, and he was afraid that the warship would burn, so he withdrew from the army.