Who has the story of Galileo? The story of Galileo

TOP1: Galileo questioned authority.

When Galileo was 17 years old, he was admitted to the University of Pisa to study medicine.

In one class, Professor Biro gave a lecture on embryology. He preached: "Whether a mother gives birth to a boy or a girl is determined by the strength of the father. The father is strong, and the mother gives birth to a boy; The father was weakened, and the mother gave birth to a girl. ”

As soon as Professor Biró's words fell, Galileo raised his hand and said, "Teacher, I have a question. My neighbor, the man is very strong, but his wife has given birth to five daughters in a row. This is the opposite of what the teacher said, how can this be explained? ”

I am speaking from the opinion of the famous ancient Greek scholar Aristotle, and I will not be wrong! Professor Biro tried to subdue him.

Galileo continued: "Is it true that what Aristotle said does not correspond to the facts? Science must be consistent with the facts, otherwise it is not real science. "Professor Biro was asked and couldn't get off the stage.

Later, Galileo was indeed criticized by the school, but his courageous, studious, and truth-seeking spirit did not change in the slightest. Because of this, he finally became a generation of scientific giants.

1. The discovery of the law of free fall.

2. The problem of falling bodies has been noticed by people for a long time. Before Galileo, Aristotle in ancient Greece believed that objects fell 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, a 10-kilogram object will fall 10 times faster than a 1-kilogram object.

3. For more than 1,700 years, in books and on the pulpit of schools, this doctrine contrary to the laws of nature has been told as the Bible, and no one dares to doubt it. This is because Aristotle put forward the "earth-centered theory", which was in the interests of the slave-owning class and the feudal ruling class, so Aristotle's other doctrines or barns had to be protected by slippery.

4. Young Galileo was not intimidated by this behemoth. Reasoning from his own experience, he boldly questioned the doctrine of Aristotle. Something that weighs the same pound, he thought, naturally falls at the same speed.

But is it possible that if two one-pound things are tied together, or a hundred one-pound things are tied together, then according to the doctrine of Aristotle, they will fall twice as fast or ninety-nine times as fast as a pound-heavy thing? He was determined to give it a try himself.

5. Galileo chose the Leaning Tower of Pisa as a testing ground. One day, he brought two solid iron balls of the same size, but different weights, one weighing one hundred pounds and one pound of hollow iron balls, and climbed the leaning tower more than fifty meters high. Under the tower, there are people who come to **.

6. I saw Galileo appear at the top of the tower, holding an iron ball in each hand, and shouted loudly: "The people below can see clearly, the iron ball has fallen." He spread both hands at the same time.

It was seen that two iron balls fell parallel to each other, almost simultaneously on the ground. Those who sarcastically mocked him were dumbfounded.