| A | B |
|---|
| Made heliocentric theory well known, printed book on it. | Nicolaus Copernicus |
| First practical steam engine, gears for converting reciprocal to rotary motion, pressure gauge. | James Watt |
| Combustion is rapid oxidation and conservation of mass in chemical reactions. | Antoine Laurent Lavoisier |
| Germ theory of disease and pasteurization. | Louis Pasteur |
| Designed aircraft wing and first manned flight. | Orville and Wilbur Wright |
| 3 laws of motion and law of universal gravitation. | Isaac Newton |
| Theory of Relativity, which launched the Mannhatan Project, worked on photons. | Albert Einstein |
| Discovered alpha & beta radiation, discovered nucleus of atom, formulated concept of half-life. | Ernest Rutherford |
| Discovered basic principles of heredity. | Gregor Mendel |
| Built the first four-stroke combustion engine, led to practical automobiles. | Nikolaus August Otto |
| Invented first electric motor, discovered electromagnetic induction, made 2 laws of electrolysis. | Michael Faraday |
| Discovered elecromagnetic waves and described it in 4 equations, concluded light was an EM wave. | James Clark Maxwell |
| Proved heliocentric theory, heavy and light objects fall at same rate, made superior telescope, developed scientific method. | Galileo Galilei |
| Atomic theory, stated concepts of atoms, molecules, elements, and compounds, expressed that all atoms of an element and all molecules of compounds are the same. | John Dalton |
| Originated theory of organic evolution through natural selection, studied Galapagos Islands and organisms there. | Charles Darwin |
| Phonograph, incandescent lamp, power company. | Thomas Edison |
| Helped create quantum mechanics, derived uncertainty principle. | Werner Heisenberg |
| Discovered penicillin | Alexander Fleming |
| Discovered microbes, described spermatozoa and red blood corpuscles. | Antony van Leeuwenhoek |
| Invented telephone. | Alexander Graham Bell |
| Energy chunks-quanta, provided start for quantum mechanics. | Max Planck |
| Developed exclusion principle | Wolfgang Pauli |
| Described planetary motion in 3 laws (elliptical orbits) | Johannes Kepler |
| Argued matheticaly for the existence of black holes and other singularities, furthered quantum mechanics | Stephen Hawking |
| Developed antiseptic measures, used in surgery | Joseph Lister |
| Invented printing press, published first mass produced Bible | Johann Gutenberg |
