Scientists
Physics
Johannes Kepler
German astronomer born in 1571 who discovered the three laws of planetary motion, proving orbits are
Niels Bohr
Danish physicist born in 1885 who proposed the Bohr atomic model and won the 1922 Nobel Prize. He sh
Max Planck
German physicist born in 1858 who introduced the energy quantum, launching quantum theory. Won the 1
Nicolaus Copernicus
Polish astronomer born in 1473 whose De revolutionibus proposed heliocentrism, overturning fourteen
Nikola Tesla
Serbian-American inventor born in 1856 who designed the AC power system underpinning modern electric
Galileo Galilei
Italian natural philosopher born in 1564. His telescopic discoveries and falling-body experiments re
Maria Goeppert Mayer
German-born American physicist (1906-1972) who proposed the nuclear shell model explaining why certa
Edwin Hubble
American astronomer born in 1889 who proved that galaxies exist beyond the Milky Way and discovered
Isaac Newton
English natural philosopher born in 1643 who formulated universal gravitation and three laws of moti
Hideki Yukawa
Japanese theoretical physicist born in 1907 in Kyoto who predicted the existence of the meson in 193
Subrahmanyan Chandrasekhar
Indian-American astrophysicist born in 1910 who established the Chandrasekhar limit for white dwarf
James Clerk Maxwell
Scottish theoretical physicist born in 1831 who unified electricity, magnetism, and light in four eq
Marie Curie
Polish-born physicist and chemist who won Nobel Prizes in Physics (1903) and Chemistry (1911). She d
Ibn al-Haytham
Arab mathematician and physicist born in 965 in Basra who founded modern optics by proving that visi
Albert Einstein
German-born physicist whose special and general relativity rewrote the understanding of space, time,
Stephen Hawking
British physicist born in 1942 who advanced cosmology through the singularity theorems and Hawking r
Richard Feynman
American theoretical physicist born in 1918 who reformulated quantum electrodynamics and invented th
Michael Faraday
British physicist born in 1791 who discovered electromagnetic induction and the laws of electrolysis
Biology & Medicine
Hideyo Noguchi
Japanese bacteriologist born in 1876 in Fukushima who researched syphilis and yellow fever at the Ro
Hippocrates
Ancient Greek physician born c. 460 BC on the island of Cos. He founded rational medicine by attribu
Kitasato Shibasaburō
Japanese microbiologist born in 1853 who studied under Robert Koch, achieved the first pure culture
Avicenna
Persian polymath born in 980 near Bukhara whose Canon of Medicine served as the standard medical tex
Minakata Kumagusu
Japanese naturalist born in 1867 in Wakayama, known worldwide for his research on slime molds. He wa
Edward Jenner
English physician born in 1749 who developed vaccination by proving that cowpox inoculation prevents
Louis Pasteur
French chemist and microbiologist born in 1822 who proved that microorganisms cause fermentation and
Alexander Fleming
Scottish bacteriologist born in 1881 who discovered penicillin in 1928, opening the antibiotic age.
Rosalind Franklin
British physical chemist born in 1920 whose X-ray image Photo 51 was essential to solving the DNA st
Gregor Mendel
Augustinian friar born in 1822 who discovered heredity's laws through pea-plant experiments. Ignored
Charles Darwin
British naturalist born in 1809 who built the theory of evolution by natural selection. On the Origi
Rachel Carson
American marine biologist born in 1907 whose Silent Spring exposed the ecological damage caused by p
Chemistry
Robert Boyle
Irish natural philosopher born in 1627 who formulated Boyle's Law relating gas pressure and volume.
Linus Pauling
American quantum chemist and peace activist born in 1901. Won the Nobel Prize in Chemistry (1954) fo
Antoine Lavoisier
French chemist born in 1743 who discovered the law of conservation of mass, named oxygen, and demoli
Alfred Nobel
Swedish chemist and industrialist born in 1833 who invented dynamite and held 355 patents. He used h
Dmitri Mendeleev
Russian chemist born in 1834 who created the periodic table of elements in 1869, predicting the prop
Mathematics
Euclid
Ancient Greek mathematician active c. 300 BC. His Elements built geometry as a deductive system from
Takakazu Seki
Japanese mathematician born c. 1642, called the 'Arithmetical Sage.' He independently discovered det
Zu Chongzhi
Chinese mathematician and astronomer born in 429 AD who calculated pi to seven decimal places, a pre
Carl Friedrich Gauss
German mathematician born in 1777 whose contributions to number theory, statistics, astronomy, and e
Leonhard Euler
Swiss mathematician born in 1707, the most prolific in history. He made foundational contributions t
Archimedes
Ancient Greek mathematician, physicist, and engineer born c. 287 BC in Syracuse. He discovered the p
Ada Lovelace
British mathematician born in 1815, daughter of Lord Byron. She wrote the first computer program in
Muḥammad ibn Musa al-Khwarizmi
Central Asian mathematician born c. 780 who systematized algebra and gave his name to the word 'algo
Emmy Noether
German mathematician born in 1882 who revolutionized abstract algebra and proved Noether's theorem l
Grace Hopper
American computer scientist and US Navy rear admiral born in 1906 who pioneered the compiler and hel
Srinivasa Ramanujan
Indian mathematician born in 1887 who, with almost no formal training, produced astonishing results
Alan Turing
British mathematician born in 1912 who formalized computation with the Turing machine and helped cra
