Category Science

Why was the year 1905 considered an annus mirabilis for Einstein?

Einstein too had an annus mirabilis like Newton. In 1905, Einstein published four scientific papers in the German journal Annalen der Physik. These four papers laid the foundation of modern physics by revolutionizing how the scientific community perceived fundamental concepts of space, time, mass, and energy. As all four papers were published in 1905, this year is considered Einstein’s annus mirabilis or miracle year.

The first paper introduced the revolutionary idea that light is composed of both energy and particles. The foundation for quantum physics that physical systems can behave both as waves (energy) and as particles (matter) began here.

The second paper, though without any revolutionary concepts, was important in its own right. Einstein discovered the empirical evidence behind Brownian Motion which refers to the random movement displayed by small particles that are suspended in fluids. Though many scientists had accepted this already, empirical evidence had been lacking.

The third paper which contained the special theory of relativity possibly had the most ground-breaking content among all four papers.

The last of these papers published on 21 November 1905 had the mathematical confirmation of the Special Theory of Relativity, the most famous equation: E=mc2.

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How did Einstein end up working in a patent office?

Following his graduation in 1900, Einstein spent 2 years looking for a teaching job. Though he wrote to different universities, he was not able to impress anyone sufficiently to land a job as a teacher. Meanwhile three of his fellow students became assistants at the university in Zurich. In 1902, while he had been still writing to universities, Einstein took the job of assistant examiner in the patent office.

In his new job, Einstein evaluated patent applications for devices such as a gravel sorter and an electromechanical typewriter. He became a permanent employee of the Swiss Patent Office in 1903.

The job was a lowly one for a man of Einstein’s intellect but he thoroughly enjoyed working with the technical and mechanical ideas of various inventors. He later described it as his best time. The job also did not take too much effort, and he could pursue his own interests along with it.

While working at the patent office Einstein developed his work in special relativity and other areas of physics which later made him famous.

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Why did Einstein’s father think Zurich Polytechnic was a good place for his son?

From the age of 12 to 14, Einstein mastered integral and differential calculus by himself. As he showed immense interest and aptitude for maths and science, his father thought he should become an engineer. And Zurich Polytechnic (now Federal Institute of Technology, Switzerland) seemed like the best place to go for this. It had been one of the best scientific schools in Europe. Einstein went to Zurich to write the entrance exam. He performed well in science and maths but failed the foreign language section.

Einstein took the advice of the polytechnic school’s principal and joined the Old Cantonal School in Aarau, Switzerland, in 1895 and 1896 to finish his secondary schooling. In January 1896 Einstein gave up his citizenship in the German Kingdom of Wurttemberg to avoid military service. This was done with the approval of his father. In September 1896 he cleared the Swiss Matura exam with good marks. He scored the highest grade in science and mathematics.

Thus, Einstein became a student of the four-year mathematics and physics teaching diploma program in the Zurich Polytechnic School at the age of 17.

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Why did Einstein’s family shift to Milan, Italy?

In 1894, Hermann and Jakob’s company lost a bid to supply electrical lighting to Munich city. This was because they didn’t have enough funds to convert their equipment from direct current (DC) to the more efficient alternating current (AC). Without the deal, they were forced to sell their factory in Munich and move to Italy in search of business. They first moved to Milan and then to Pavia. However, Einstein stayed back in Munich to complete his education at Luitpold Gymnasium.

He found it more difficult to cope with school after his family moved away. His attitude was so negative that a teacher suggested he leave. The teacher said that Albert’s presence adversely affected the other students. In December 1894 Einstein left the school and went to Pavia.

While in Italy, he penned the essay On the Investigation of the State of the Ether in a Magnetic Field. Einstein had always excelled in mathematics and physics and reached mathematical levels years ahead of his peers. At the age of twelve, Einstein had already discovered his own original proof of the Pythagorean Theorem and learned algebra and Euclidean geometry on his own.

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How did the young medical student, Max Talmud influence Einstein?

A young medical student by the name Max Talmud was an informal tutor who introduced Einstein to higher mathematics and philosophy.

Talmud often had dinner in Einstein’s home and shared several books with him. Einstein loved reading these books and also discussed philosophical matters with Talmud. Quickly grasping the contents of the books, Einstein was soon baffling Talmud with his questions.

Once when Talmud gave 12-year-old Einstein a geometry textbook, he finished the entire book in a surprisingly short time. His mathematical genius was such that Talmud soon found himself unable to catch up.

A turning point in Einstein’s life was when he was 16. Talmud had introduced him to a children’s science series by Aaron Bernstein titled Naturwis-senschaftliche Volksbucher (popular Books on Physical Science). In the series, the author imagined himself travelling along-side the electricity coursing through a telegraph wire.

The question this image raised in young Einstein’s mind dominated his thoughts for the next decade. What would a beam of light look like if someone ran alongside it? A light beam should appear stationary if it was a wave. But even as a child he realized that stationary light waves haven’t been seen. This remained a paradox he tried to solve.

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What was Einstein’s experience in school?

 

Einstein studied in a strict Catholic primary school where the students wore military type uniforms. Einstein was generally bored by the classes. Though he excelled in certain subjects like mathematics and Latin, his performance in other subjects was poor. Einstein’s teachers considered him to be a dreamy, absentminded child.

However, Jakob Einstein, Albert’s uncle discovered the boy’s latent brilliance when Albert was able to give his own mathematical proof of the Pythagorean Theorem. (Pythagoras was a Greek mathematician who lived in the 6th century BC.)

Albert’s parents encouraged him to ask questions and gave him many books to read. Eager to learn more, Albert taught himself advanced maths.

In 1894, Einstein began attending a secondary school at Munich’s Luitpold Gymnasium. The new school turned out to be stricter than his primary school.        

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