Hans Albert Einstein was a Swiss-American engineer and educator of German and Serbian origin, the second child and first son of physicists Albert Einstein and Mileva Marić. He was a long-time professor of hydraulic engineering at the University of California, Berkeley.
Gravestone of Hans Albert Einstein in Woods Hole, Massachusetts, at the Woods Hole Village Cemetery. It is inscribed with the words, A life devoted to his students- Research, Music and Nature
Albert Einstein was a German-born theoretical physicist who is widely held to be one of the greatest and most influential scientists of all time. Best known for developing the theory of relativity, Einstein also made important contributions to quantum mechanics, and was thus a central figure in the revolutionary reshaping of the scientific understanding of nature that modern physics accomplished in the first decades of the twentieth century. His mass–energy equivalence formula E = mc2, which arises from relativity theory, has been called "the world's most famous equation". He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect", a pivotal step in the development of quantum theory. His work is also known for its influence on the philosophy of science.
Einstein in 1921
Einstein in 1882, age 3
Einstein in 1893, age 14
Einstein's Matura certificate, 1896