What are some examples of celebrities who have boldly questioned

Galileo. 1564 1642), Italian physicist, mathematician and astronomer. He found.

The law of swing timeliness was proposed, and the law of free fall was proposed.

Invented the gravity scale, air thermometer, hair.

The telescope of Clario proved Copernicus.

The heliocentric theory is correct.

However, he loved the natural sciences more. His mind was filled with all sorts of questions. He kept asking his father why the smoke was rising.

He delved into Aristotle.

of writings, often.

Often lost in thought. Many of Aristotle's theories, he thought, have not been proven, so why should they be regarded as absolute truths?

Many of the whys that Galileo raised as a teenager were later answered by himself.

In Galileo's hometown of Pisa, there is a cathedral that is both majestic and ornate. One afternoon, Galileo came to visit. A priest began to give an oil lamp.

Fill it with oil and hang the lamp on the ceiling of the church.

, casually let it swing back and forth in space. Galileo saw that the chandelier began to swing in a large arc, and the arc became smaller and the speed of the swing became slower. He felt that the rhythm of the chain seemed to be regular, and although the distance between the round trips was getting smaller and smaller, the chandelier seemed to take the same amount of time to make each round trip.

There was no clock, so he pressed his pulse with his right hand and silently counted the number of times the chandelier swung his pulse once. He found that the time required for each swing of the chandelier was indeed the same.

Galileo's heart suddenly lit up, and he thought: "Aristotle said that it is faster to swing through a short arc than through a long arc. Was Aristotle mistaken?

He went back home to find materials and made a few pendulums. He hung the short pendulum in the house and the long pendulum on the tree, and then calculated precisely the time it took for a pendulum to move from one end of the arc to the other. The experimental results proved that the time it takes for the pendulum to swing back and forth once is determined by the length of the rope, regardless of the weight of the pendulum, and the amplitude.

Nothing to do with it. But Galileo still didn't understand. Because Aristotle said that when an object falls from a height, it speeds.

The degree is determined by weight. The heavier the object, the faster it falls. But doesn't the pendulum also fall from a high place? Why is it that as long as the rope length of the pendulum is the same, the time for the pendulum to fall to the lowest point is the same, and it has nothing to do with the weight?

He decided to go to the Leaning Tower of Pisa.

to proceed to the next step of the trial. He invented a small mechanism that allowed objects in the box to fall at the same time at the touch of a button. On the day of the trial, he asked the students to stand on the second, third, and fifth floors with the boxes and at the top of the tower, and he signaled that the students on the second floor would open the boxes and drop a 1-pound iron ball and a 10-pound iron ball from the tower at the same time.

Try it layer by layer.

After each test, iron balls of different weights reached the ground at the same time.

The famous Leaning Tower of Pisa became a historical witness to Galileo's overthrow of Aristotle's erroneous theory of falling bodies.

The 26-year-old Einstein dared to question the primitive human notions of time, thus opening the door to a new physics to the microcosm. The rest is ditto.

Examples of daring to question authority:

1. Bruno, the natural scientist who cried out for the truth, defied the ban of the Church and boldly exposed the ignorance of religion. He organically combined the advanced natural sciences and philosophy of the time to establish his own materialist natural philosophy cosmology. He insisted on supplementing and developing the Copernican doctrine.

2. Copernicus's Earth from the center of the universe to a planet in the solar system, shaking the fundamental rules of Catholic theology Bruno is the sun from the center of the universe to the normal star, allowing people to understand the universe scientifically in a step, which is the Church's propaganda of "geocentrism" and the resulting more complete negation of "anthropocentrism".

3. Galileo challenged Aristotle. After repeated observations, studies, and experiments, Galileo discovered that if two objects of different weights fall from the same height at the same time, they will fall to the ground at the same time. So Galileo boldly challenged Aristotle's views.

4. When SARS first appeared, many medical authorities in China thought it was chlamydia, but Academician Zhong Nanshan found something else. He boldly questioned and repeatedly insisted that it was the coronavirus, which made a great contribution to the rapid diagnosis and ** of patients at that time.

5. In the second half of the 17th century, the world's scientific authority was Isaac Newton. Newton believed that light is the flow of particles, and used it to explain phenomena such as linear propagation, specular reflection, and interfacial refraction of light. But Huygens has a different view.

He does not follow the crowd, does not believe in authority, and adheres to independent opinions. As research progressed, by the beginning of the 19th century, wave theory had triumphed over particle theory.

The story of Gallileo's two iron balls falling to the ground at the same time Before Galileo, Aristotle of ancient Greece believed that the speed of falling objects was not the same. 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.

Aristotle's theory can't be wrong! The experiment began, and Galileo took an iron ball in each hand and shouted: "People below, you 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.

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.

According to Aristotle, there is no difference in how fast or slow an object falls. The speed of the fall is directly proportional to the weight, and the heavier the object, the faster the speed of the fall. Galileo, based on his own reasoning, boldly asked questions.

One day, he took two iron balls with him and stood on the Leaning Tower of Pisa while letting go. It was seen that two iron balls fell together and fell to the ground almost simultaneously. Everyone present was amazed.