Pioneer In Science Exercise 01

Pioneer In Science Exercise 01

• Anderson—Discovered positive electrons.
• Archimedes—Discovery of the Principles of lever and of specific gravity; invention of the famous Archimedean screw.
• Avogadro—An Italian scientist known for Avogadro’s Hypothesis.
• Bacquerel—Radio-activity of uranium.
• Baird—Television.
• Baron Napier—Logarithms.
• Benjamin Franklin—Invented lightning conductor.
• Bessemer—Steel smelting process.
• Bhabha, Dr H.J.—Research in Cosmic rays and Quantum theory.
• Binet—Intelligence Test.
• Birbal Sahni—Researches in Botany.
• Bose, J.C.—Invented Crescograph and published many works on plant physiology. He discovered that plants have sense and perception.
• Bose, S.N.—Discovery of a group of nuclear particles named after him “Boson”.
• Boyle—Boyle’s law; Pressure x volume = constant at a constant given temperature. Boyle was the greatest scientist of England in his time.
• Bohr—Electron Theory—Atomic structure.
• Braun, Dr Wernher von—space flying.
• Bunsen—Invention of the spectroscope.
• Carothers—Nylon plastics.
• Cavendish—Discovery of chemical composition of water; discovery of hydrogen (Inflammable Air); ‘rare gases’.
• Chadwick—Discovery of the neutron.
• Chandrasekhar—Mathematical Astrophysics.
• Charles Darwin—Theory of Evolution; Origin of Species.
• Clarke, Arthur C.—Concept of Geostationary Orbit.
• Curie, Madame—Discovery of radium.
• Dalton—Atomic theory; laws of chemical combination; law of partial pressures; the law of multiple proportions.
• Democritus—Greek philosopher—(Atomic theory).
• Dewar—Invented cordite, liquid oxygen and introduced thermos flask.
• Einstein—Theory of relativity.
• Euclid—Science of geometry.
• Fahrenheit—Fahrenheit mercury thermometric scale in which freezing point is –32° and boiling point is 212°.