Albert Einstein, born on 14 March 1879, was
a German theoretical physicist, whose profound contributions to science made
him one of the most renowned scientists in history. His theory of relativity
and the famous equation E=mc^2 are landmarks in the field of physics.
Einstein’s pioneering work on the photoelectric
effect earned him the 1921 Nobel Prize in Physics and laid a key foundation for
quantum theory. Notably, a poll conducted by Physics World named him the
greatest physicist of all time.
Albert Einstein was born in 1879 in the German
Empire. His parents, Hermann Einstein and Pauline Koch, were secular Ashkenazi
Jews. The following year, the Einstein family relocated to Munich, where
Hermann and his brother established an electrical equipment manufacturing
company.
Einstein's formal education began at a Catholic
elementary school and continued at the Luitpold Gymnasium. After his father’s
business failed, in 1894 the Einsteins moved to Italy. His talent for
mathematics and physics was evident from a young age, with the youth avidly
self-studying in these subjects.
Completing his secondary schooling in Aarau,
Switzerland, he renounced his German citizenship in 1896 and enrolled at the
Swiss Federal Polytechnic School in Zurich. It was there that he met his future
wife, Mileva Marić. After graduating in 1900, he gained Swiss citizenship the
following year.
Einstein commenced his professional career in 1902
when he took up a job at the Swiss Patent Office in Bern. While working here,
he simultaneously conducted his own research. This dual engagement bore fruit
in 1905 when he published four influential papers in the journal Annalen der
Physik.
These papers, which included expositions on the
photoelectric effect, Brownian motion, special relativity, and mass-energy
equivalence, had a monumental impact on modern physics. Building on this
success, in 1915, Einstein formulated the general theory of relativity,
integrating gravitation with the principles of mechanics.
With a move to Berlin in 1914 to join the Prussian
Academy of Sciences and the Humboldt University, he solidified his academic
standing. The rise of Adolf Hitler in 1933, however, prompted
Einstein, a Jewish intellectual, to remain in the United States during a visit.
By 1940, he had accepted American citizenship.
Despite his achievements, later in his career
Einstein pursued a unified field theory without success and expressed his
dissatisfaction with the inherent randomness of quantum mechanics. During this
period he frequently clashed with Niels Bohr over the Copenhagen
interpretation, famously claiming that God "does not throw dice."
In his personal life, Einstein had various complex
relationships. He married Mileva Marić in 1903, with whom he had two sons, but
they divorced in 1919. That same year, he married his cousin Elsa Löwenthal,
and they stayed married until her death in 1936. His passion for music,
especially for Mozart's compositions, was a significant part of his life.