List of Important Physicists
The following is a gallery of highly influential and important figures in the history of physics. For a list that includes even more people, see list of physicists.

Nicolaus Copernicus (1473  1543): published De revolutionibus orbium coelestium (On the Revolutions of the Celestial Spheres) in 1543  often considered the starting point of modern astronomy  in which he argued that the Earth and the other planets revolved around the Sun (heliocentrism)

Galileo Galilei (1564  1642): discovered the uniform acceleration rate of falling bodies, improved on the refracting telescope, discovered the four largest moons of Jupiter, described projectile motion and the concept of weight; known for championing of the Copernican theory of heliocentricism against Church opposition.

Johannes Kepler (1571—1630): used the accurate observations of Tycho Brahe to formulate three fundamental laws of planetary motion, described elliptical motion of planets around the sun, developed early telescopes, invented the convex eyepiece, discovered a means of determining the magnifying power of lenses.

Evangelista Torricelli (1608  1647): invented the barometer (a glass tube of mercury inverted into a dish), found that the change of height of the mercury each day was from atmospheric pressure, worked in geometry and developed integral calculus, published findings on fluid and projectile motion in his 1644 Opera Geometrica (Geometric Works)

Blaise Pascal (1623  1662): experimented with fluids, formulated Pascal's law in the 1650s stating that the pressure applied to a fluid taken in a closed container is transmitted with equal force throughout the container, proved that air has weight and that air pressure can produce a vacuum, namesake of the unit of pressure: the pascal (Pa)

Christiaan Huygens (1629  1695): studied the rings of Saturn and discovered its moon Titan, invented the pendulum clock, studied optics and centrifugal force, theorized that light consists of waves (Huygens–Fresnel principle) which became instrumental in the understanding of waveparticle duality.

Robert Hooke (1635  1703): formulated the law of elasticity, invented the balance spring, the spiral spring wheel in watches, the Gregorian telescope, and the first screwdivided quadrant, constructed first arithmetical machine, improved cell theory with the microscope

Sir Isaac Newton (1642  1727): established three laws of motion and a law of universal gravitation in his Philosophiæ Naturalis Principia Mathematica (1687), laid foundations for classical mechanics, invented the reflecting telescope, observed that a prism splits white light into the colors of the visible spectrum, formulated a law of cooling, coinvented infinitesimal calculus

Henry Cavendish (1731  1810): greatest English chemist and physicist of his age, researched composition of the atmosphere, the properties of different gases, the synthesis of water, the law of electrical attraction and repulsion, a mechanical theory of heat, calculated the weight of the Earth in the Cavendish experiment, determined the universal gravitational constant

CharlesAugustin de Coulomb (1736  1806): formulated a law in 1785 which described the electrostatic interaction between electrically charged particles (attraction and repulsion) and was essential to the development of the theory of electromagnetism, namesake of the unit of electric charge: the coulomb (C)

Alessandro Volta (1745  1827): built the first electric battery (the voltaic pile) in the 19th century, did substantial work with electric currents, namesake of the unit of electric potential: the volt (V)

Thomas Young (1773  1829): established the principle of interference of light, resurrected the centuryold theory that light is a wave, helped decipher the Rosetta Stone

Hans Christian Ørsted (1777 – 1851): discovered that electric currents create magnetic fields (an important aspect of electromagnetism), shaped advances in science in the late 19th century, namesake of the oersted (Oe) (the cgs unit of magnetic Hfield strength)

AndréMarie Ampère (1777  1836): main founder of electrodynamics, showed how an electric current produces a magnetic field, stated that the mutual action of two lengths of currentcarrying wire is proportional to their lengths and to the intensities of their currents (Ampère's law), namesake of the unit of electric current (the ampere)

Joseph von Fraunhofer, (1787  1826): first to studied the dark lines of the Sun’s spectrum, now known as Fraunhofer lines, first to use extensively the diffraction grating (a device that disperses light more effectively than a prism does), set the stage for the development of spectroscopy, making optical glass and achromatic telescope objectives.

Georg Ohm (1789  1854): found that there is a direct proportionality between the electric current I and the potential difference (voltage) V applied across a conductor, and that this current is inversely proportional to the resistance R in the circuit, or I = V/R, known as Ohm's law, namesake of the unit of electrical resistance (the ohm)

Michael Faraday (1791  1867): showed how a changing magnetic field can be used to generate an electric current (Faraday's law of induction), applied this knowledge to the development of several electrical machines, described principles of electrolysis, early pioneer in the field of low temperature study

Christian Doppler (1803  1853): first described how the observed frequency of light and sound waves is affected by the relative motion of the source and the detector, a phenomenon which became known as the Doppler effect.

James Prescott Joule (1818  1889): discovered that heat is a form of energy, ideas led to the theory of conservation of energy, worked with Lord Kelvin to develop the absolute scale of temperature, made observations on magnetostriction, found the relationship between current through resistance and the heat dissipated, now called Joule's law.

William Thomson, 1st Baron Kelvin (1824  1907): major figure in the history of thermodynamics, helped develop law of conservation of energy, studied wave motion and vortex motion in hydrodynamics and produced a dynamical theory of heat, formulated of the first and second laws of thermodynamics

James Clerk Maxwell (18311879): united electricity, magnetism, and optics into a consistent electromagnetic theory, formulated Maxwell’s equations to show that electricity, magnetism and light are manifestations of the electromagnetic field, developed the MaxwellBoltzmann distribution (statistical means of describing aspects of the kinetic theory of gases)

Ernst Mach (1838  1916): contributed the Mach number, studied shock waves and how airflow is disturbed at the speed of sound, influenced logical positivism, forerunner of Einstein’s relativity through his criticism of Newton

Ludwig Boltzmann (1844  1906): developed statistical mechanics (how the properties of atoms – mass, charge, and structure – determine the visible properties of matter, such as viscosity, thermal conductivity, and diffusion), developed the kinetic theory of gases.

Wilhelm Röntgen (1845  1923): produced and detected electromagnetic radiation in a wavelength range of Xrays or Röntgen rays in 1895, for which he earned the first Nobel Prize in Physics in 1901, namesake of element 111, Roentgenium

Henri Becquerel (1852 – 1908): discovered radioactivity along with Marie SkłodowskaCurie and Pierre Curie, for which all three won the 1903 Nobel Prize in Physics.

Hendrik Lorentz (1853 – 1928): clarified electromagnetic theory of light, shared the 1902 Nobel Prize in Physics with Pieter Zeeman for the discovery and theoretical explanation of the Zeeman effect, developed concept of local time, derived the transformation equations subsequently used by Albert Einstein to describe space and time.

J. J. Thomson (1856  1940): showed in 1897 that cathode rays were composed of a previously unknown negatively charged particle (later named the electron), discovered isotopes, invented the mass spectrometer, awarded the 1906 Nobel Prize in Physics for the discovery of the electron and for his work on the conduction of electricity in gases.

Nikola Tesla (1856  1943): developer of modern alternating current (AC) flow, improved on the dynamo, patents and theoretical work formed the basis of wireless communication and the radio, transformer and electric bulb and invented the Tesla coil.

Heinrich Hertz (1857  1894): clarified and expanded Maxwell's electromagnetic theory of light, first to prove the existence of electromagnetic waves by engineering instruments to transmit and receive radio pulses

Max Planck (1858  1947): founded quantum mechanics in 1900, showed how the energy of a photon is proportional to its frequency, won him the 1918 Nobel Prize in Physics

Pieter Zeeman (1865  1943): shared the 1902 Nobel Prize in Physics with Hendrik Lorentz for discovering the Zeeman effect (splitting a spectral line into several components in the presence of a static magnetic field)

Marie Curie (1867  1934): discovered radioactivity with Henri Becquerel and her husband Pierre Curie, awarded Nobel Prize in Physics (1903) and the Nobel Prize for Chemistry (1911), found techniques for isolating radioactive isotopes, isolated plutonium and radium

Robert Andrews Millikan (1868  1953): measured the charge on the electron, worked on the photoelectric effect, performed vital research pertaining to cosmic rays.

Ernest Rutherford (1871  1937): considered "Father of Nuclear Physics", showed how the atomic nucleus has a positive charge, first to change one element into another by an artificial nuclear reaction, differentiated and named alpha and beta radiation, awarded Nobel Prize for Chemistry in 1908

Lise Meitner (1878  1968)  worked on radioactivity and nuclear physics, discovered radioactive element protactinium with her colleague Otto Hahn, part of the team that discovered nuclear fission, for which Otto Hahn was awarded the Nobel Prize.

Albert Einstein (1879  1955): revolutionized physics due to his theories of special and general relativity, described Brownian motion, awarded the Nobel Prize in Physics in 1921 for his work on the photoelectric effect, formulated mass–energy equivalence formula E = mc2, published more than 300 scientific papers and over 150 nonscientific works, considered the "Father of Modern Physics"

Niels Bohr (1885  1962): used quantum mechanical model (known as the Bohr model) of the atom which theorized that electrons travel in discrete orbits around the nucleus, showed how electron energy levels are related to spectral lines, received the Nobel Prize in Physics in 1922.

Erwin Schrödinger (18871961): formulated the Schrödinger equation in 1926 describing how the quantum state of a physical system changes with time, awarded the Nobel Prize in Physics in 1933, two years later proposed the thought experiment known as Schrödinger's cat

Edwin Hubble (1889  1953): discovered of the existence of galaxies other than the Milky Way and galactic red shift, found that the loss in frequency—the redshift—observed in the spectra of light from other galaxies increased in proportion to a particular galaxy's distance from Earth: Hubble's law

Louis de Broglie (1892  1987): researched quantum theory, discovered the wave nature of electrons, awarded the 1929 Nobel Prize in Physics, ideas on the wavelike behavior of particles used by Erwin Schrödinger in his formulation of wave mechanics.

Georges Lemaître (1894  1966): first person to propose the theory of the expansion of the Universe, first to derive what is now known as Hubble's law, made the first estimation of what is now called the Hubble constant which he published in 1927 (two years before Hubble's article), proposed the Big Bang theory of the origin of the Universe

Wolfgang Pauli (1900  1958): pioneers of quantum physics, received the Nobel Prize in Physics in 1945 (nominated by Albert Einstein), formulated the Pauli exclusion principle involving spin theory (underpinning the structure of matter and the whole of chemistry), published the Pauli–Villars regularization, formulated the Pauli equation, coined the phrase 'not even wrong'

Werner Heisenberg (1901  1976): developed method to express ideas of quantum mechanics in terms of matrices in 1925, published his famous uncertainty principle in 1927, awarded Nobel Prize in Physics in 1932

Enrico Fermi (1901  1954): developed first nuclear reactor (Chicago Pile1), contributed to quantum theory, nuclear and particle physics, and statistical mechanics, awarded the 1938 Nobel Prize in Physics for his work on induced radioactivity.

Paul Dirac (1902  1984): made fundamental contributions to the early development of quantum mechanics and quantum electrodynamics, formulated the Dirac equation describing the behavior of fermions, predicted the existence of antimatter, shared the1933 Nobel Prize in Physics with Erwin Schrödinger,

John Bardeen (1908 – 1991): awarded Nobel Prize in Physics in 1956 with William Shockley and Walter Brattain for the invention of the transistor and again in 1972 with Leon Cooper and John Robert Schrieffer for a fundamental theory of conventional superconductivity known as the BCS theory.

John Wheeler (1911  2008): revived interest in general relativity in the United States after World War II, worked with Niels Bohr to explain principles of nuclear fission, tried to achieve Einstein’s vision of a unified field theory, coined the terms black hole, quantum foam, wormhole, and the phrase “it from bit”.

Francis Crick (1916  2004): codiscoverer of the structure of the DNA molecule. He played a crucial role in research related to revealing the genetic code. He is widely known for use of the term "central dogma" to summarize an idea that genetic information flow in cells is essentially oneway, from DNA to RNA to protein.

Richard Feynman (1918  1988): developed the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, and the physics of the superfluidity of supercooled liquid helium, awarded the Nobel Prize in Physics in 1965 with Julian Schwinger and SinItiro Tomonaga, developed the Feynman diagram representing subatomic particle behavior.

Stephen Hawking (1942 ): provided, with Roger Penrose, theorems regarded the occurrence of gravitational singularities in the framework of general relativity, theoretically predicted that black holes should emit radiation (Hawking radiation)

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