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460 BCE
Democritus
influential Ancient Greek pre-Socratic philosopher primarily remembered today for his formulation of an atomic theory of the universe. -
Isaac Newton
English physicist and mathematician Sir Isaac Newton, most famous for his law of gravitation, was instrumental in the scientific revolution of the 17th century. -
John Dalton
He was an English chemist, physicist, and meteorologist. He is best known for his pioneering work in the development of modern atomic theory; and his research into colour blindness, sometimes referred to as Daltonism. -
Dmitri Mendeleev
He was a Russian chemist and inventor. He formulated the Periodic Law, created a farsighted version of the periodic table of elements, and used it to correct the properties of some already discovered elements and also to predict the properties of eight elements yet to be discovered. -
J.J Thomson
English physicist who helped revolutionize the knowledge of atomic structure by his discovery of the electron (1897) -
Marie Curie
She was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. -
R.A. Millikan
He was an American experimental physicist honored with the Nobel Prize for Physics in 1923 for the measurement of the elementary electronic charge and for his work on the photoelectric effect. -
Ernest Rutherford
He was a New Zealand physicist who came to be known as the father of nuclear physics. -
Lise Meitner
She was an Austrian-Swedish physicist who worked on radioactivity and nuclear physics. Otto Hahn and Meitner led the small group of scientists who first discovered nuclear fission of uranium -
Hans Geiger
He was a German physicist. He is perhaps best known as the co-inventor of the detector element of the Geiger counter and for the Geiger–Marsden experiment which discovered the atomic nucleus. -
Niels Bohr
was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, -
H.G. Moseley
He was an English physicist, whose contribution to the science of physics was the justification from physical laws of the previous empirical and chemical concept of the atomic number. -
James Chadwick
He was an English physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932 -
Heisenberg
He was a German theoretical physicist and one of the key pioneers of quantum mechanics. He published his work in 1925 in a breakthrough paper.
