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VideoProposes a new theory to explain how the four elements of Empedocles and the atoms of Democritus produce the wide range of substances apprehended by our senses.
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First to propose that matter exists in the form of particles. Coined the term 'atoms'.
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Created the first thorough logical analysis of the inductive and experimental proceedures of practical science.
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Showed the difference between being in motion and being moved. Now called between dynamic motion and kinematic motion.
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VideoInvented the first parachute.
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VideoStated the theory that the Sun is a motionless body at the center of the solar system, with the planets revolving around it.
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Invented the compound microscope.
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VideoFigured out that gravity is the force that draws objects toward each other.
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Recognized and named oxygen and hydrogen (1783) and opposed the phlogiston theory.
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Stated that in chemical reactions matter is neither created nor destroyed.
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VideoProposed atomic theory based upon measurable masses.
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Hypothesized that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
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Discovered that when a wire carrying an electric current is placed next to a single magnetic pole, the wire will rotate.
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VideoCame up with the theory of evolution.
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He not only discovered that disease came from microorganisms, but he also realized that bacteria could be killed by heat and disinfectant.
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Studied the effects of sending an electric current through a gas in a sealed tube.
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Discovered radioactivity.
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Discovered the electron.
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Discovered two radioactive elements, Polonium and Radium.
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Discovered alpha and beta rays, set forth the laws of radioactive decay, and identified alpha particles as helium nuclei.
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Measured the charge on an electron.
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Used self-built equipment to prove that every element’s identity is uniquely determined by the number of protons it has.
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Developed the Bohr model of the atom.
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Originated quantum theory.
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Formulated the wave equation and revealed the identity of his development of the formalism and matrix mechanics.
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VideoDiscovered the law of the photoelectric effect.
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Discovered a way to formulate quantum mechanics in terms of matrices.
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Proposed the Big Bang theory.
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Best known for his research on quantum theory and for his discovery of wave nature of electrons.
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Discovered the neutron.
