We owe much of human advancement to scientists from Euclid to Stephen Hawking. These great scientists of the 20th century and generations before that, have developed logic that has accelerated evolution in more ways than one. Their work may have been criticized, but the truth remains that their sheer hard work and intelligence is unquestionable. These men and women of unfathomable intellect, have contributed immensely towards global development. Their technologies have brought the world closer, making our perceptions about races, castes, and creed broader, while placing their own lives in danger in order to accomplish this valiant task. The work of these great scientists may never have been supported by their contemporaries. According to Plutarch, a famous Greek historian, Archimedes was killed by an enraged Roman soldier. The soldier was asked to summon the Greek scientist to the court of General Marcellus who was a Roman military leader, but he declined to come because he was too busy working on a problem. This sheer dedication to their dreams has made the world we live in an advanced society. Great Scientists in History

Great Scientists	Their Discoveries
Andre Marie Ampere	He discovered a unit to measure electric current
Euclid	Known as the Father of Geometry
Heinrich Hertz	He propounded the electromagnetic theory of light and electromagnetic waves
Archimedes	He is known for Archimedean principle, theory of buoyancy and many other discoveries that have contributed greatly to the world's progress
Amedeo Avogadro	The famous Avogadro's Law states, "equal volumes of different gases, pressure and temperature being equal, contain the same number of molecules."
Niels Henrik David Bohr	Bohr Model of Atom
Johannes Gutenberg	Letterpress printing press which is also known as mechanical printing press
Wilhelm Conrad Rontgen	X-ray
Albert Einstein	Theory of relativity and photoelectric effect
Rudolf Diesel	Combustion engine
Karl Friedrich von Drais	Bicycle
Ferdinand Verbiest	Invented the first car ever
Graham Bell	Invented the first telephone
John Logie Baird	Invented the television
Sir Isaac Newton	Scope of gravitational force and laws of motion are noted contributions made my Sir Isaac Newton, amongst other mathematical formulas
Peter Henlein	Pocket watch
Charles Robert Darwin	Theory of evolution, which is famously known as 'survival of the fittest'
Louis Pasteur	He created vaccination for rabies and anthrax. He discovered a method to prevent spoilage of milk and wine, known as pasteurization
Werner von Siemens	Dynamo
Artur Fischer	Fischertechnik
Hans von Ohain	Jet engine
Felix Hoffmann	Aspirin
Hugo Junkers	Civilian avion
Konrad Zuse	First practical computer
Melitta Bentz	Coffee filter
Robert Koch	Isolation of Bacillus anthracis, tuberculosis bacteria and Vibrio cholerae. Also known for his Koch's postulates
Heinrich Gobel	Incandescent light bulb
Karlheinz Brandenburg	MP3 Technology
Heinrich Focke	Helicopter
Gottlieb Daimler	Internal combustion engine and automobile
Julius Lothar Meyer	Periodic table of chemical elements
Otto Hahn	Propounded the theory of nuclear fission and is known as the 'father of nuclear chemistry
Emile Berliner	Record player
Fritz Pfleumer	Audio tape
Thomas Edison	Electric light bulb
Rudolf Hell	Formulated technology for scanner and fax
Marie Curie	Radioactivity
Joseph John Thomson	Mass spectrograph
Robert Bunsen	Cesium and Rubidium
John Dalton	Atomic theory
Isaac Newton	Gravity
Wright Brothers	Airplanes
James Watt	Steam engine
Alessandro Volta	Electric cell
Louis Braille	Braille, the language for blind people
Tim Berners-Lee	World Wide Web
Laszlo Jozsef Biro	Ballpoint pen
Stephen Hawking	Theorems of gravitational singularities pertaining to general relativity, and prediction that black holes should emit radiation
Galileo Galilei	Study of phases of Venus, discovery of the four largest satellites of Jupiter, empirical analysis of sunspots are few contributions made by this famous inventor.

The story of Sir Isaac Newton also talks about expulsion from school for being a lousy student. At this juncture, what needs to be noted is the commitment of these famous scientists in history, towards their work that never faltered. Several great scientists in history might have been misunderstood geniuses, but these judgments never became their impediments. These women and men of insurmountable stature have left the world with inspirational stories, besides their legendary work. The lesson they teach, even today, is that honest work will be paid off. Hope this concise list of great scientists give you a glimpse of the best discoveries ever.