Famous Physicists Of The 20th Century

Right IconThis ranking is based on an algorithm that combines various factors, including the votes of our users and search trends on the internet.

The 20th century saw the world making tremendous developments in science and technology. Scientists from countries across the world were making newer discoveries and inventing technologies that would ultimately change the course of world history. Albert Einstein—one of the greatest physicists of all time—played a pivotal role in the evolution of quantum theory during the 20th century. Nobel laureate Niels Henrik David Bohr who developed the Bohr model of the atom was another physicist who made foundational contributions to understanding atomic structure and quantum theory. Nuclear physics as a distinct discipline made an emergence in the late 19th century and 20th century physicist Pierre Curie made pioneering contributions to the fields of crystallography, magnetism, piezoelectricity and radioactivity for which he was awarded the Nobel Prize. The 20th century also saw major collaborative works conducted by teams such as the Curie family of illustrious scientists. Another major collaboration was between Dutch physicist Hendrik Anthony "Hans" Kramers and Niels Bohr which led to important work on how electromagnetic waves interact with matter. Another major figure was Werner Karl Heisenberg who was one of the key pioneers of quantum mechanics. Read on to learn more about the life and works of famous Physicists of the 20th Century.
Vote for Your Favourite Physicists Of The 20th Century
 1 
Stephen Hawking
(Theoretical Physicist - First to Set Out a Theory of Cosmology)
Stephen Hawking
36
Birthdate: January 8, 1942
Sun Sign: Capricorn
Birthplace: Oxford, England
Died: March 14, 2018

Stephen Hawking was an English theoretical physicist and cosmologist, who despite being afflicted motor neurone disease that severely limited his physical abilities, was able to build a phenomenally successful career. He was the first to set out a theory of cosmology explained by a union of the general theory of relativity and quantum mechanics. Hawking was ranked 25 in the BBC's poll of the 100 Greatest Britons, in 2002.

 2 
Albert Einstein
(One of the Greatest Physicists of All Time, Best Known for Developing the Theory of Relativity)
Albert Einstein
28
Birthdate: March 14, 1879
Sun Sign: Pisces
Birthplace: Ulm, Germany
Died: April 18, 1955
Deemed as the most influential physicist of the 20th century, the German-born physicist Albert Einstein was one of the greatest minds to have ever lived. Even his name is now synonymous with the term genius. The father of Modern Physics is credited with developing the theory of relativity and explaining the photoelectric effect. The latter won him the Nobel Prize.
 3 
Marie Curie
(The First Woman to Win a Nobel Prize)
Marie Curie
22
Birthdate: November 7, 1867
Sun Sign: Scorpio
Birthplace: Warsaw, Poland
Died: July 4, 1934
Amongst the most notable scientists of her time, the first woman to win a Nobel Prize, the sole person to win two Nobel Prize in two different category, and the first woman professor at the University of Paris—Marie Curie’s list of achievements is incredible. She did extensive research in the field of radioactivity and discovered polonium and radium.
Recommended Lists:
 4 
Richard Feynman
(One of the Joint Winners of Nobel Prize in Physics in 1965)
Richard Feynman
16
Birthdate: May 11, 1918
Sun Sign: Taurus
Birthplace: New York, New York, United States
Died: February 15, 1988

Theoretical physicist Richard Feynman won the Nobel Prize in Physics in 1965, along with Julian Schwinger and Shin'ichirō Tomonaga, for his research on quantum electrodynamics. He also contributed to the development of the atomic bomb. Feyman made it to Physics World’s list of the 10 greatest physicists of all time.

 5 
J. Robert Oppenheimer
(American Theoretical Physicist and Former Wartime Head of the ‘Los Alamos Laboratory’)
J. Robert Oppenheimer
10
Birthdate: April 22, 1904
Sun Sign: Taurus
Birthplace: New York, New York, United States
Died: February 18, 1967

Hailed as a brilliant scientific mind, American physicist J Robert Oppenheimer, led the Manhattan Project which resulted in the development of atomic bomb during the World War II. The bombs were dropped on the Japanese cities of Hiroshima and Nagasaki in 1945. However, Oppenheimer was in a constant conflict over the moral issue of the weapons of mass destruction and rallied against nuclear proliferation.

 6 
Niels Bohr
(Physicist)
Niels Bohr
6
Birthdate: October 7, 1885
Sun Sign: Libra
Birthplace: Copenhagen, Denmark
Died: November 18, 1962
Nobel Prize-winning Danish physicist Niels Bohr is remembered for his work on the atomic structure and quantum theory. He laid down the Bohr model of the atom and established the Niels Bohr Institute. The element Bohrium has been named after him. He was also part of the British nuclear project.
 7 
Werner Heisenberg
15
Birthdate: December 5, 1901
Sun Sign: Sagittarius
Birthplace: Würzburg, Germany
Died: February 1, 1976
German theoretical physicist Werner Heisenberg is best known for pioneering quantum mechanics. He received the 1932 Nobel Prize in Physics. He had also helped Germany plan nuclear weapon strategies during World War II and was the director of what is now known as the Max Planck Institute for Physics.
 8 
Erwin Schrödinger
6
Birthdate: August 12, 1887
Sun Sign: Leo
Birthplace: Erdberg, Vienna, Austria
Died: January 4, 1961
Austrian physicist Erwin Schrödinger, is best known for the "Schrödinger's cat" experiment, or the Schrodinger equation. His book What Is Life? explored genetics through physics. The Nobel Prize winner also wrote on a variety of topics, such as color theory and thermodynamics, and tried to create a unified field theory.
 9 
Homi Bhabha
(Indian physicist)
Homi Bhabha
8
Birthdate: October 30, 1909
Sun Sign: Scorpio
Birthplace: Mumbai, India
Died: January 24, 1966

Padma Bhushan-winning physicist Homi Bhabha revolutionized the Indian nuclear program singlehandedly. Born into an affluent family, he was educated at Cambridge. Initially geared toward a career in mechanical engineering, he later drifted to physics, eventually contributing to the formation of TIFR. The Bhabha Atomic Research Centre is named after him.

 10 
Ernest Rutherford
(New Zealand Physicist Who is Known as the Father of Nuclear Physics)
Ernest Rutherford
8
Birthdate: August 30, 1871
Sun Sign: Virgo
Birthplace: Brightwater, New Zealand
Died: October 19, 1937

New Zealand physicist Ernest Rutherford is remembered as the father of nuclear physics. His discovery of radioactive half-life and of radon, and his differentiation of alpha and beta radiation, won him the Nobel Prize in Chemistry in 1908. Element 104 was named rutherfordium in his honor.

 11 
Max Planck
(Physicist)
Max Planck
6
Birthdate: April 23, 1858
Sun Sign: Taurus
Birthplace: Kiel, Germany
Died: October 4, 1947

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.

 12 
Enrico Fermi
(Italian Physicist, Nobel Laureate and Creator of the World's First Nuclear Reactor)
Enrico Fermi
4
Birthdate: September 29, 1901
Sun Sign: Libra
Birthplace: Rome, Italy
Died: November 28, 1954
Italian physicist Enrico Fermi created the Chicago Pile-1, the world's first nuclear reactor. Known widely as the "architect of the atomic bomb," he was equally proficient in theoretical and experimental physics, and won the 1938 Nobel Prize in Physics for his work on radioactivity and for discovering transuranium elements.
 13 
Subrahmanyan Chandrasekhar
(Astrophysicist Known for his 'Theoritical Studies of the Physical processes of importance to the Structure and Evolution of the Stars')
Subrahmanyan Chandrasekhar
7
Birthdate: October 19, 1910
Sun Sign: Libra
Birthplace: Lahore, Pakistan
Died: August 21, 1995

Remembered for his varied contribution to astrophysics, Subrahmanyan Chandrasekhar is perhaps best known for his work on the evolution of massive stars. Today known as Chandrasekhar limit, it contributed to final understanding of supernovas, neutron stars, and black holes. A prolific writer, he also did significant work on energy transfer by radiation in stellar atmospheres and convection on solar surface.

 14 
J. J. Thomson
(Physicist)
J. J. Thomson
4
Birthdate: December 18, 1856
Sun Sign: Sagittarius
Birthplace: Manchester, Lancashire, England
Died: August 30, 1940

J. J. Thomson was a British physicist credited with the discovery of the electron, the first subatomic particle to be discovered. He was awarded the Nobel Prize in Physics in 1906 for his work on the conduction of electricity in gases. In 1884, he was appointed Cavendish Professor of Physics at the University of Cambridge. 

 15 
Guglielmo Marconi
(Inventor of 'Radio' and Winner of 1909 Nobel Prize in Physics)
Guglielmo Marconi
5
Birthdate: April 25, 1874
Sun Sign: Taurus
Birthplace: Bologna, Italy
Died: July 20, 1937

Guglielmo Marconi was an Italian electrical engineer and inventor best remembered for his work on long-distance radio transmission. Marconi, who is credited with inventing the radio, was honored with the 1909 Nobel Prize in Physics for his work in the field of wireless telegraphy. Also a businessman, Marconi founded the Wireless Telegraph & Signal Company in 1897. 

 16 
Wilhelm Rontgen
(Mechanical engineer, Physicist)
Wilhelm Rontgen
5
Birthdate: March 27, 1845
Sun Sign: Aries
Birthplace: Lennep, Remscheid, Germany
Died: February 10, 1923

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.

 17 
Max Born
(Physicist)
Max Born
4
Birthdate: December 11, 1882
Sun Sign: Sagittarius
Birthplace: Wrocław, Poland
Died: January 5, 1970
From being home-schooled for being too sickly to attend school, Max Born went on to win the Nobel Prize in Physics for his contribution to quantum mechanics. Being a Jew, with the rise of the Nazi power, he lost his professorship at the University of Göttingen, and moved to Cambridge.
 18 
Lord Kelvin
(Mathematician, Physicist)
Lord Kelvin
5
Birthdate: June 26, 1824
Sun Sign: Cancer
Birthplace: Belfast
Died: December 17, 1907

Lord Kelvin was a British mathematical physicist and engineer. He studied at the Glasgow University and proceeded to teach there as well. Besides his academic career, he also had a career as an electric telegraph engineer and inventor. He received the Royal Society's Copley Medal in 1883. Absolute temperatures are stated in units of kelvin in his honor.

 19 
Paul Dirac
(One of the Most Significant Physicists of the 20th Century and Nobel Laureate)
Paul Dirac
5
Birthdate: August 8, 1902
Sun Sign: Leo
Birthplace: Bristol, England
Died: October 20, 1984

English theoretical physicist and Nobel laureate Paul Dirac OM FRS, counted among leading physicists of the 20th century, made fundamental contributions in the early development of quantum electrodynamics and quantum mechanics. He derived the Dirac equation while the modern theory of antimatter began with one of his papers. His book The Principles of Quantum Mechanics remains an influential monograph on the subject.

 20 
Nikola Tesla
(Inventor, Engineer & Futurist, Who Obtained Over 300 Patents)
Nikola Tesla
13
Birthdate: July 10, 1856
Sun Sign: Cancer
Birthplace: Smiljan, Croatia
Died: January 7, 1943

Inventor, engineer and futurist, Nikola Tesla, is best remembered for his contribution to the development of the modern alternating current (AC) electricity supply system. A prolific inventor, he had around 300 patents for his inventions. Even though he earned a considerable amount of money, he had poor money management skills and died a poor man.

 21 
Wolfgang Pauli
(One of the Pioneers of Quantum Physics and Winner of 1945 Nobel Prize for Physics)
Wolfgang Pauli
5
Birthdate: April 25, 1900
Sun Sign: Taurus
Birthplace: Vienna, Austria
Died: December 15, 1958

Nobel Prize-winning Austrian physicist Wolfgang Pauli is remembered for his contribution to quantum physics and for laying down the Pauli principle. While he was initially married to a cabaret dancer, the marriage ended in a divorce after a year. His written works are considered classics in science.

 22 
Peter Higgs
(British Theoretical Physicist and Nobel Prize Laureate for His Work on the Mass of Subatomic Particles)
Peter Higgs
6
Birthdate: May 29, 1929
Sun Sign: Gemini
Birthplace: Newcastle upon Tyne, England

Peter Higgs is a British theoretical physicist. He studied at King's College London and was awarded a Ph.D. in 1954. He went on to have a brilliant academic career and was elected Fellow of the Royal Society (FRS) in 1983. In 2013, he shared the Nobel Prize in Physics with Belgian physicist François Englert.  

 23 
Mileva Marić
(Serbian Physicist, Mathematician and the First Wife of Albert Einstein)
Mileva Marić
11
Birthdate: December 19, 1875
Sun Sign: Sagittarius
Birthplace: Titel, Serbia
Died: August 4, 1948
Serbian physicist/mathematician Mileva Marić was the first wife of Albert Einstein and the second lady to complete the full program at the mathematics and physics department of Zürich Polytechnic. Experts still debate over whether she had helped Einstein in his initial research. Einstein transferred his Nobel Prize money to her.
 24 
Michio Kaku
(Theoretical Physicist and Author of the Best-Selling Books ‘Physics of the Impossible’ and ‘Physics of the Future')
Michio Kaku
20
Birthdate: January 24, 1947
Sun Sign: Aquarius
Birthplace: San Jose, California, United States

Apart from teaching at the City College of New York, theoretical physicist Michio Kaku also often pens his thoughts in blogs and has written several bestselling books, such as The God Equation. His research is focused on the string theory. He also believes in the existence of aliens.

 25 
Meghnad Saha
(Astrophysicist)
Meghnad Saha
4
Birthdate: October 6, 1893
Sun Sign: Libra
Birthplace: Kaliakair Upazila, Bangladesh
Died: February 16, 1956

Indian astrophysicist Meghnad Saha is best remembered for developing the thermal ionization equation. A grocer’s son, he relied on merit alone to excel in academics and eventually became a professor at the universities of Allahabad and Calcutta. He was also a Lok Sabha MP and a Fellow of the Royal Society.

 26 
Brian Cox
(Physicist Best Known as the Presenter of Science Programme 'Wonders of Life')
Brian Cox
14
Birthdate: March 3, 1968
Sun Sign: Pisces
Birthplace: Oldham, Lancashire, England

Brian Cox is an English physicist and former musician. He has presented numerous science programs for BBC radio and TV, especially the Wonders of... series. He is also the author of several popular science books. He has been lauded for his efforts to publicize science and was awarded the British Association's Lord Kelvin Award in 2006. 

 27 
Vera Rubin
(American Astronomer Known for Her Pioneering Work on Galaxy Rotation Rates)
Vera Rubin
4
Birthdate: July 23, 1928
Sun Sign: Leo
Birthplace: Philadelphia, Pennsylvania, United States
Died: December 25, 2016

American astronomer Vera Rubin is best known for her pioneering discoveries on galaxy rotation rates, her groundbreaking work confirming the existence of dark matter and for her life-long advocacy for women in science. She studied the galactic rotation curves and provided strong evidence of the existence of dark matter. The Vera C. Rubin Observatory in Chile is named after her.

 28 
Murray Gell-Mann
(Physicist)
Murray Gell-Mann
4
Birthdate: September 15, 1929
Sun Sign: Virgo
Birthplace: Manhattan, New York City, U.S.
Died: May 24, 2019

Nobel Prize-winning American physicist Murray Gell-Mann is best remembered for his research on elementary particles. The Yale and MIT alumnus later taught at Caltech and is credited with coining the terms "quark" and "strangeness" in quantum physics. A linguistic enthusiast, he also co-established the Evolution of Human Languages program.

 29 
Irène Joliot-Curie
(French Physicist, Politician and Winner of the 1935 Nobel Prize in Chemistry)
Irène Joliot-Curie
4
Birthdate: September 12, 1897
Sun Sign: Virgo
Birthplace: Paris, France
Died: March 17, 1956

Marie Curie and Pierre Curie’s daughter, Irène Joliot-Curie, herself a brilliant scientist, won the 1935 Nobel Prize in Chemistry, along with her husband, Joliot-Curie, for discovering artificial radioactivity. She was also one of the first three female French government members. She tragically died of leukemia caused by exposure to radiation.

 30 
Sally Ride
(The First American Woman and The Third Woman in Space)
Sally Ride
18
Birthdate: May 26, 1951
Sun Sign: Gemini
Birthplace: Encino, Los Angeles, California, United States
Died: July 23, 2012
Astronaut and physicist Sally Ride was the first American woman and the youngest American astronaut to enter space. Following her death, it was revealed that she had been in a 27-year lesbian relationship with tennis player and professor Tam O'Shaughnessy. Sally herself was a ranked junior tennis player, too.
 31 
Hendrik Lorentz
(Physicist)
Hendrik Lorentz
4
Birthdate: July 18, 1853
Sun Sign: Cancer
Birthplace: Arnhem, Netherlands
Died: February 4, 1928

Nobel Prize-winning Dutch physicist Hendrik Lorentz, a major figure of the Second Dutch Golden Age, is remembered for his discovery of the Zeeman effect, along with his former student Pieter Zeeman, who shared the Nobel with Lorentz. His research on electromagnetic radiation prepared ground for Einstein’s special theory of relativity.

 32 
Vikram Sarabhai
(Scientist)
Vikram Sarabhai
4
Birthdate: August 12, 1919
Sun Sign: Leo
Birthplace: Ahmedabad, India
Died: December 30, 1971

Padma Bhushan- and Padma Vibhushan-winning Indian scientist Vikram Sarabhai was born into the famous Sarabhai family of industrialists who were associated with the Indian Independence Movement. He made major contributions to India’s nuclear power and space research initiatives, developed textile research in India, and helped set up IIM-Ahmedabad.

 33 
Ronald McNair
(Physicist, Astronaut)
Ronald McNair
7
Birthdate: October 21, 1950
Sun Sign: Libra
Birthplace: Lake City
Died: January 28, 1986

A doctorate in physics from MIT Cambridge, Ronald McNair worked on chemical lasers before joining NASA and in 1984 flew as a mission specialist on STS-41-B aboard Challenger, becoming the second African-American to do so. In January 1986, he was selected to fly on STS-51-L, but was killed along with rest of the crews when Challenger disintegrated soon after liftoff.

 34 
Kip Thorne
(Physicist)
Kip Thorne
6
Birthdate: June 1, 1940
Sun Sign: Gemini
Birthplace: Logan

American theoretical-physicist Kip Thorne, who is noted for his contributions in gravitational physics and astrophysics, is known for Thorne-Żytkow object, Thorne-Hawking-Preskill bet, LIGO, gravitational waves and the book Gravitation. Thorne along with Rainer Weiss and Barry C. Barish received the Nobel Prize in Physics in 2017 for their contributions to the LIGO detector and the observation of gravitational waves.

 35 
John G. Trump
(Scientist)
John G. Trump
10
Birthdate: August 21, 1907
Sun Sign: Leo
Birthplace: New York, New York, United States
Died: February 21, 1985

Better known as former U.S. president Donald Trump’s uncle, John G. Trump was an MIT physicist and engineer. Though he had initially aspired to be an architect and join his brother Fred’s real-estate business, John later concentrated on his research that led to the invention of high-voltage generators.

 36 
Walter Lewin
(Astronomer, University teacher, Astrophysicist, Physicist)
Walter Lewin
10
Birthdate: January 29, 1936
Sun Sign: Aquarius
Birthplace: The Hague
 37 
Klaus Fuchs
(Theoretical Physicist and Atomic Spy)
Klaus Fuchs
6
Birthdate: December 29, 1911
Sun Sign: Capricorn
Birthplace: Rüsselsheim, German Empire
Died: January 28, 1988

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.

 38 
Edward Teller
(physicist)
Edward Teller
5
Birthdate: January 15, 1908
Sun Sign: Capricorn
Birthplace: Budapest, Hungary
Died: September 9, 2003

Edward Teller was one of the famous "Martians,” or eminent Hungarian scientists who had migrated to the U.S. A prominent chemical engineer and nuclear physicist, he was part of the team that created the world’s first atomic bomb and also designed the first hydrogen bomb, or thermonuclear bomb.

 39 
Bernhard Caesar Einstein
(Swiss-American Engineer and One of the Three Known Biological Grandchildren of Albert Einstein)
Bernhard Caesar Einstein
9
Birthdate: July 10, 1930
Sun Sign: Cancer
Birthplace: Dortmund, Germany
Died: September 30, 2008

Swiss-American physicist and engineer Bernhard Caesar Einstein was better known as the only grandchild of Albert Einstein to have survived beyond childhood. While two of his biological brothers died in infancy, his parents adopted a girl child, too. He grew up to work on night vision and laser technology.

 40 
Lise Meitner
(Austrian-Swedish Physicist Who Discovered the Element Protactinium)
Lise Meitner
6
Birthdate: November 7, 1878
Sun Sign: Scorpio
Birthplace: Vienna, Austria
Died: October 27, 1968

Lise Meitner was an Austrian-Swedish physicist best remembered for her contributions that led to the discoveries of nuclear fission and the element protactinium. Nicknamed the German Marie Curie by Albert Einstein, Lise Meitner became the second woman in the world to receive a doctorate in physics in 1905. In 1997, chemical element 109 meitnerium was named in her honor.

 41 
Lev Landau
(Physicist)
Lev Landau
4
Birthdate: January 22, 1908
Sun Sign: Aquarius
Birthplace: Baku, Azerbaijan
Died: April 1, 1968

Nobel Prize-winning Russian physicist Lev Landau is remembered for his pathbreaking research in quantum mechanics. A math prodigy, he had learned calculus at 13. He failed to receive his Nobel in person due to a near-fatal car crash which caused him injuries that eventually caused his death 6 years later.

 42 
Henri Poincare
(French Polymath and Mathematician Known as One of the Founders of the 'Field of Topology')
Henri Poincare
5
Birthdate: April 29, 1854
Sun Sign: Taurus
Birthplace: Nancy, France
Died: July 17, 1912
Known as The Last Universalist for his expertise in a variety of domains, French mathematician Henri Poincare conducted research that formed the basis of the modern chaos theory. Apart from his work on relativity and the three-body problem, he also laid the foundation of algebraic topology.
 43 
Brian Greene
(Chairman of the World Science Festival Since Co-founding It in 2008)
Brian Greene
5
Birthdate: February 9, 1963
Sun Sign: Aquarius
Birthplace: New York, New York, United States

American theoretical physicist, mathematician, and string theorist Brian Greene is noted for popularising string theory through his books like The Elegant Universe, and The Fabric of the Cosmos and related PBS television specials. Greene taught as professor of physics at Cornell University, and presently serves as a professor at Columbia University. He is the co-founder and chairman of the World Science Festival.

 44 
Freeman Dyson
(Mathematician)
Freeman Dyson
6
Birthdate: December 15, 1923
Sun Sign: Sagittarius
Birthplace: Crowthorne, England
Died: February 28, 2020

Freeman Dyson was a British-American theoretical and mathematical physicist, mathematician, and statistician. He made major contributions in the fields of quantum field theory, astrophysics, random matrices, quantum mechanics, and nuclear physics. He originated the concept that went on to be known as Dyson's transform. He received the Golden Plate Award of the American Academy of Achievement in 1986. 

 45 
Andrei Sakharov
(Soviet Nuclear Physicist, Dissident and Winner of the 1975 Nobel Prize for Peace)
Andrei Sakharov
4
Birthdate: May 21, 1921
Sun Sign: Gemini
Birthplace: Moscow, Russia
Died: December 14, 1989

Andrei Sakharov was a Russian dissident and nuclear physicist best remembered for designing RDS-37, Soviet Union's first two-stage hydrogen bomb. Also an activist for peace and human rights, Andrei Sakharov was honored with the Nobel Peace Prize in 1975. The Sakharov Prize for Freedom of Thought, which is awarded by the European Parliament, is named in his honor.

 46 
Ernest Lawrence
(Physicist)
Ernest Lawrence
3
Birthdate: August 8, 1901
Sun Sign: Leo
Birthplace: Canton, South Dakota, United States
Died: August 27, 1958
 47 
Robert H. Goddard
4
Birthdate: October 5, 1882
Sun Sign: Libra
Birthplace: Worcester, Massachusetts, United States
Died: August 10, 1945

The son of a machine shop owner, Robert H. Goddard grew up to become a pioneer of rocketry. Interested in physics and mechanics since childhood, he dreamed of space flight. He developed the world’s first rocket that ran on liquid fuel. NASA's Goddard Space Flight Center is named after him.

 48 
Louis Slotin
(Canadian Physicist and Chemist Who Took Part in the Manhattan Project)
Louis Slotin
7
Birthdate: December 1, 1910
Sun Sign: Sagittarius
Birthplace: Winnipeg, Canada
Died: May 30, 1946
While showing his colleagues how to work on a plutonium bomb, Canadian scientist Louis Slotin was exposed to a lethal radioactive dose that first caused him to vomit and then die 9 days later. He had, however, reportedly shielded his colleagues from maximum exposure, thus saving their lives.
 49 
Andre Geim
(Dutch-British Physicist Known for His Discovery of 'Graphene')
Andre Geim
3
Birthdate: October 21, 1958
Sun Sign: Libra
Birthplace: Sochi, Russia

Andre Geim is a Russian-born Dutch-British physicist. He has been associated with the School of Physics and Astronomy at the University of Manchester for several years. In 2010, he was awarded the Nobel Prize in Physics jointly with Konstantin Novoselov in recognition of his work on graphene. He is also a recipient of the 2000 Ig Nobel Prize in Physics. 

 50 
William Shockley
(Physicist)
William Shockley
8
Birthdate: February 13, 1910
Sun Sign: Aquarius
Birthplace: London, England
Died: August 12, 1989

American physicist, inventor and Nobel laureate William Bradford Shockley Jr received the Nobel Prize in Physics with John Bardeen and Walter Brattain in 1956 for their researches on semiconductors and for discovering the transistor effect while working at the Bell Labs. He later became a proponent of eugenics while serving as a professor of electrical engineering at Stanford University.