Unknown things about the genius scientist Albert Einstein

(Baonghean.vn) - Genius Albert Einstein was a German-born theoretical physicist and is considered one of the fathers of modern physics.

1. Head larger than normal

Einstein was born on March 14, 1879, in Germany. At birth, the back of Einstein's head was abnormally large, causing his family to worry that something was seriously wrong with him. However, a few weeks later, the shape of his head returned to normal.Image:Wikimedia Commons

2. Slow speech

Einstein began speaking at the age of four. His parents sought medical help to correct his speech delay. Economist Thomas Sowell even coined the term "Einstein syndrome" to describe people with exceptional intelligence or talent who are slow to speak as children. Photo: Wikimedia Commons

2. Genius "learning bias", underestimated by teachers and unlucky in exams

At school age, Einstein was not considered a good student. His poor record even led to rumors that he failed math. However, in reality, Einstein was familiar with and proficient in physics at the university level before the age of 11 and was an excellent violinist and achieved high marks in Latin and Greek. Before the age of 15, Einstein was proficient in differential and integral calculus.Image:Wikimedia Commons

4. The mystery of Einstein's daughter

Before Einstein and his first wife, Mileva Marić, married, Mileva secretly gave birth to their daughter at her parents' home in Serbia. However, their daughter, Lieserl, has no clear identity. Records related to Lieserl essentially disappeared after her birth. To this day, researchers have not found evidence that Einstein ever saw his daughter. Photo: Internet

5. Einstein set rules for his wife

After their marriage, Einstein set out a set of rules for his wife Mileva to follow, including requirements such as Mileva must prepare three meals a day, stop talking when he asked, and not expect intimate attention from him.Image:Wikimedia Commons

6. Einstein married his cousin

Einstein had a very good relationship with his cousin Elsa Einstein, who later became his second wife in 1919. There are even sources that say that Einstein and Elsa's relationship blossomed while he was still living with his first wife. Photo: Bettmann

7. Einstein never wore socks.

"When I was a child, I discovered that my big toe often made a big hole in my sock. Since then I never wore socks again," Einstein wrote in a letter to his cousin. Photo: Internet

8. Renounced German citizenship at age 16

From an early age, Albert Einstein hated having to have a certain nationality, thinking that it would be ideal to be a "citizen of the world". In 1895, he gave up his German citizenship at the age of 16 and became stateless until 1901 when he became a Swiss citizen.

9. 1,427-page FBI file

In 1933, the FBI began keeping a file on Einstein, just before his third trip to the United States. The file, which ran to more than 1,400 pages, focused primarily on Einstein's connections with socialist and pacifist organizations. J. Edgar Hoover, the first director of the FBI, even recommended that Einstein not be allowed into the United States under the Alien Exclusion Act, but the State Department overruled him.

10. Civil rights activist before the civil rights movement began

Einstein was a strong supporter of civil rights and freedom of speech. When American historian WEB Du Bois was indicted in 1951 on charges of being an agent of a foreign power, Einstein volunteered to testify. After Du Bois's lawyer informed the court that Einstein would be present, the judge decided to dismiss the case. Pictured: Einstein speaking at the 1933 Science and Populism Conference at the Royal Albert Hall in London. Photo: Hulton Archive

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