German theoretical physicist Max Planck is remembered for originating the quantum theory of physics, which earned him the 1918 Nobel Prize in Physics. He laid down concepts such as the Planck constant and the Planck postulate. The Kaiser Wilhelm Society was later renamed Max Planck Society in his honor.
4 Max Born
Wilhelm Rontgen was a German physicist and mechanical engineer. He is best remembered for producing and detecting X-rays for which he was honored with the first Nobel Prize in Physics in 1901. His discovery of X-rays remains one of the greatest achievements in the field of medical science.
Heinrich Hertz was a German physicist best remembered for proving the existence of electromagnetic waves with conclusive evidence. For his contributions, Hertz has been honored around the world by a number of countries, including Japan, Russia, and Germany. In 1930, the International Electrotechnical Commission established hertz (Hz) as the SI unit for frequency.
German theoretical physicist Klaus Fuchs worked on many significant theoretical calculations relating to the first nuclear weapons. He was also an atomic spy who provided information about nuclear weapons production to the Soviet Union during World War II. He was convicted and jailed for nine years, following which he resumed his career as a physicist.
A descendant of Pennsylvania founder William Penn through his mother, Hermann von Helmholtz studied medicine, pushed by his father, in spite of being interested in the natural sciences. Best known for his law of conservation of energy, he coalesced the fields of medicine, physiology, math, and physics in his studies.
13 Georg Ohm
Georg Ohm was a German mathematician and physicist. He is credited with discovering the proportionality between the voltage applied through a conductor and the subsequent electric current, which came to be known as Ohm's law. His work earned him the prestigious Copley Medal in 1841. A prolific writer, Georg Ohm published several papers and pamphlets throughout his career.
Gustav Kirchhoff was a German physicist who is credited with coining the term black-body radiation. He is best remembered for his contribution to the basic understanding of spectroscopy, electrical circuits, and the emanation of black-body radiation. In 1862, he received the prestigious Rumford Medal. The Bunsen-Kirchhoff Award is named after Gustav Kirchhoff and German chemist Robert Bunsen.
German physicist Arnold Sommerfeld initially taught math and theoretical physics and later came to be known for his groundbreaking work on atomic and quantum physics and wave mechanics. He also laid down the magnetic quantum number. Many of the doctoral and post-doctoral students he supervised later won the Nobel Prize.
20 Rainer Weiss
Hermann Klaus Hugo Wey is remembered for his contribution to both physics and math. He was one of the first scientists to think of merging the concepts of electromagnetism and relativity. He moved from the University of Göttingen to Princeton in the wake of the rise of the Nazi reign.
Karl Ferdinand Braun was a German electrical engineer, inventor, and physicist. He made significant contributions to the development of radio and TV technology. In 1909, he jointly received the Nobel Prize in Physics with Guglielmo Marconi for their contribution to the development of wireless telegraphy. His work led to the later development of radar, smart antennas, and MIMO.
25 Max von Laue
Nobel Prize-winning German physicist Max von Laue is best remembered for his discovery that crystals cause diffraction of X-rays. He had initially assisted Max Planck and had later also contributed to quantum theory and the theory of relativity. He helped his fellow German scientists escape the Nazi regime.
26 Ernst Ruska
28 Hans Geiger
31 James Franck
James Franck was a German physicist. Along with fellow physicist Gustav Hertz, he jointly received the Nobel Prize for Physics in 1925. He had a prominent academic career and served as the director of the Second Institute for Experimental Physics at the University of Göttingen. He later moved to USA and participated in the Manhattan Project during World War II.
36 Wilhelm Wien
Wilhelm Wien was a German physicist famous for deducing what became known as Wien's displacement law. He is also credited with formulating an expression for the black-body radiation He was awarded the Nobel Prize in Physics in 1911 for his work on heat radiation.
39 Stefan Hell
Johannes Stark was a German physicist who discovered the phenomenon that came to be known as the Stark effect. For this work, he was awarded the Nobel Prize in Physics in 1919. A supporter of Adolf Hitler, he was a main figure in the anti-Semitic Deutsche Physik movement. He was found guilty by a denazification court in 1947.
German physicist Wilhelm Weber is remembered for inventing the first electromagnetic telegraph, along with Carl Friedrich Gauss. The Copley Medal-winning scientist had also taught at the universities of Göttingen and Leipzig. The SI unit of magnetic flux, formerly known as the coulomb, was later named the weber in his honor.
48 Otto Stern
Gustav Ludwig Hertz was a German experimental physicist best known for his work on inelastic electron collisions in gasses, in collaboration with James Franck. They received the 1925 Nobel Prize in Physics. Hertz worked at the University of Berlin and served in the military during World War I. He was a Member of the German Academy of Sciences.