Well Known Indian Scientists

Aryabhatta: He lived between 476 and 520 A.D. He was a great mathematician and an astronomer. His contributions include about the movement of earth around the Sun, determination of various physical parameters of various celestial bodies, such as diameter of Earth and Moon. He laid foundations of algebra and pointed out the importance of zero. The first Indian satellite was named after him.
Bhagavantam: His contribution to radio astronomy and cosmic rays in noteworthy. An associate of Sir C.V.Raman, Dr.S.Bhagavantam was scientific adviser in the Ministry of Defence and Director General of Defence Research Development Organisation.
Bhaskaracharya: Born in 1114 A.D., bhaskaracharya was a great Hindu mathematician and Astronomer. His work ‘Sidhanta Siromain’ consists of two parts of mathematics and two parts of astronomy. He had a foresight on the modern theory of conventions.
S.S. Bhatnagar: A great Indian Scientist who lived between 1895 and 1955. He was the first Director General of Council of Scientific and Industrial Research. Under his directorship, many research laboratories were established throughout India.
J.C.Bose: He was an eminent Physicist and Botanist. He founded Bose Research Institute, Calcutta. He invented Crescograph and lived between 1858 and 1937.
S.N. Bose: He became well-known when he expounded the Bose Einstein theory which deals with the detection of a group of nuclear particles – named after him ‘Boson’. His contribution to Planck’s Law is laudable. He died in 1974.
Dr. S.Chandrasekhar: An Indian-born American, who won Nobel Prize for Physics in 1983. He is an Astrophysicist. His theory of Stellar Evolution – the birth and death of stars is 35 years old. His first discovery was laughed at. After three decades, it was recognised and today he is a Nobel Laureate. According to his theory, the old stars just collapse and disappear in the light of denser stars of low light popularly called Chandrasekhar Limit.
Charaka: He lived between 80 and 180 A.D. He was a court physician of King Kanishka. His writings on Hindu Medicine are invaluable
Dhanvantri: He was a great physician during the period of Chandragupta Vikramaditya. His period was between 375 and 413 A.D.
Hargobind Khorana: He created an artificial gene and deciphered genetic code. He was awarded Nobel Prize for Medicine in 1968.
Homi J.Bhaba: He largely contributed to the development of Atomic Physics and he was primarily responsible for setting up of Nuclear reactors in India. He published important papers on Quantum Theory, Cosmic Rays, Structure of atom, etc. He was the first Chairman of Atomic Energy Commission. He died in a plane crash in 1966 over Alps.
Joshi: Prof. S.S.Joshi’s works on physical and chemical reaction under electrical discharge on active nitrogen, colloids, hydrogen peroxide are noteworthy
Nagarjuna: A great Buddhist Philosopher and Chemist. He mentioned about crecibles, sublimation, colouring process etc. His works are still available in China and Tibet. His theory on extraction of copper and metallic oxides are mention-worthy.
Nag Chowdhury B.D: An eminent Indian Nuclear Physicist known all over the world.
Narlikar: J.V.Narlikar was the co-author of Hoyle-Narlikar theory of continuous creation which supplies missing links in Einstein’s theory of Relativity. Hoyle and Narlikar have shown that the gravitation is always attractive and there is no gravitational repulsions.
Raja Ramanna: A great nuclear scientist, who was instrumental to stage India’s first Nuclear explosion at Pokharan range in 1974.
Sir C.V. Raman: First Indian Scientist to receive Nobel prize for physics in 1929 for his invention ‘Raman Effect’. His study of crystal structure is of unique importance. He founded Raman Research Institute at Bangalore.
Sir C.P.Roy: Author of ‘Hindu Chemistry’. He founded Indian Chemical Society and Bengal Chemical and Pharmaceuticals Ltd. He has done good work on nitrous acid and its salts. He lived between 1861- 1944 AD.
Prof. V.Ramachandra Rao: Direction of Indian Scientific Satellite Project (ISSP) at Peenya near Bangalore
Saha Dr.Maghnad: Late Palit Prof.of Physics, University College of Scientific and Technology, Calcutta University well-known for his researches in nuclear physics, cosmic rays, spectrum analysis and other branches of theoretical physics. He lived from 1893 to 1956.
Srinivas Ramanujam: A mathematical wizard, contributed much to number theory, theory of partitions and theory of continuous fractions. He lived between 1887 to 1920 AD. His birth centenary was celebrated in 1987.
Satish Dhavan: He was chairman of Indian Space Research Organisation. He was instrumental to take India into space age by launching Aryabhatta in 1975.
Susruta: A fourth century Hindu Surgeon and Physician. He had written an important book on medicine and on medical properties of garlic.
Varahamihira: An Indian astronomer and astrologer of 6th Century A.D. He was a mathematician and philosopher. He was one of the nine gems of Vikramaditya.

Worlds Prominent Scientists

Abdul Kalam, Dr A.P.J.: is credited with advancement of missile technology in India. He was honoured with Bharat Ratna award on November 26, 1997. He is known as “father of India’s Missile Technology”. Elected 11th President of India.
Alvares, Luis W.: is an American physicist teaching at the University of California, Berkeley, U.S.A. He won the Nobel Prize for Physics in 1968 for an important breakthrough he made in elementary physics in 1960 when he discovered a new resonance particle—a discovery that shattered the then prevailing notions as to how matter was built.
Anfinsen, Dr Christian B.: of the U.S.A.’s National Institute of Health, Bethseda, Maryland was one of the three co-winners of the Nobel Prize in Chemistry, 1972.
Archimedes: Greek mathematician (born in Sicily) who lived about 250 B.C. is known for the discovery of the Archimedes’ principle viz., The volume of any insoluble solid can be found by noting its loss of weight when immersed in water. He is also credited with the invention of Archimedean Screw, a cylindrical device for raising water.
Arrow, Kenneth, J.: of Harvard University, U.S.A. is co-winner of the Nobel Prize for Economics, 1972 with Sir John Richard Hicks of Oxford University. The two men are known for their pioneering contributions to general economic equilibrium and welfare theories.
Aryabhatta: (A.D. 476-520) after whom India’s first scientific satellite has been named, was a great Indian astronomer and mathematician. Among his important contributions are the recognition of the importance of the mov ement of the earth round the sun, determination of the physical parameters of various celestial bodies, such as diameter of the earth and the moon. He laid the foundations of algebra and was responsible for pointing out importance of “zero”.
Avogadro, Amedeo: (1776-1856) Italian physicist; founder of Avogadro’s hypothesis: “Equal volumes of all gases under similar conditions of temperature and pressure, contain equal number of molecules.” He also defined a molecule.
Bardeen, Prof John: of the University of Illinois (U.S.A.) is co-winner of the Nobel Prize for Physics, 1972 (with Prof Leon N. Cooper and Prof John Robert Schrieffer) for researches into the “theory of super-conductivity” usually called the BCS theory.
Barnard, Christian: South African surgeon who shot into world news in December 1967 when he completed the first heart transplant operation on Louis Washkansky.
Beadle, Dr G.: American scientist awarded Nobel Prize for medicine in 1958 for his work concerning the actual basis of heredity—the way in which characteristics are transmitted from one generation to another.
Becquerel, Henri: (1852-1908) French physicist known for his discovery in 1896 of Becquerel rays, the first indications of radio-activity; these rays were later named gamma rays. He shared Nobel Prize for Physics with the Curies in 1903.
Berzelius, J.J: (1779-1848) Swedish Chemist, known for introduction of chemical shorthand symbols and atomic weights.
Bessemer, Sir Henry: (1813-1898) English engineer. He invented the process for the manufacture of steel known after his name.
Bhabha, Dr H.J.: (1909-66) Indian scientist. He published important papers on Cosmic Rays and Quantum Theory. He was professor at the Indian Science Institute, Bangalore; Chairman, Atomic Energy Commission; Director, Tata Institute of Fundamental Research; President, Indian Science Congress in 1951 and presided at the Atoms for Peace Conference held at Geneva in 1956. He had many significant researches in structure of atom and contributed largely to the setting up of atomic reactors at Trombay (Mumbai).
Bhagvantam, Dr S.: is an eminent Indian scientist who has made a rich contribution to research in radio astronomy and cosmic rays. He has published more than 150 research papers and several books. He retired in October 1969 as the Scientific Adviser to the Ministry of Defence, and Director General of the Defence Research Development Organisation. He is an old-time associate of Sir C.V. Raman.
Bhaskaracharya: Born in A.D. 1114, he was almost the last great Hindu mathematician and astronomer until modern times. He wrote Sidhanta-Siromani in 1150 which consisted of two mathematical and two astronomical parts. Bhaskara anticipated the modern theory on the convention of signs (minus by minus makes plus, minus by plus makes minus). He also anticipated Kepler’s method for determining the surface and volume of sphere.
Bhatnagar, Dr Shanti Swarup: (1895-1955) great Indian scientist. He was Director of Council of Scientific and Industrial Research (C.S.I.R.). A chain of National Laboratories has been established in the country due to his able organisation and unbounded energy.
Bohr, Neils: (born 1885) Danish Physicist. He was awarded Nobel Prize for Physics in 1922. He greatly extended the theory of atomic structure of devising an atomic model in 1913 and evolving theory of nuclear structure; assisted America in atom bomb research.
Borlaug, Norman Ernest: American agricultural scientist and winner of the Nobel Prize for Peace in 1970. He was one of those who laid the groundwork of the Green Revolution.
Bose, Sir J.C.: (1858-1937) Eminent Indian physicist and Botanist; founder of Bose Research Institute, Calcutta. Inventor of crescograph which is used to magnify movements made by plants.
Bose, S.N.: Eminent Indian scientist who won fame by expounding the Bose-Einstein theory, which is concerned in detection of a group of nuclear particles—named after him ‘Boson’ in recognition of his contribution to the subject; contributed to Plank’s law. Professor of physics, Calcutta University; nominated member to the Council of States. Awarded Padma Vibhushan in 1954. He died on February 4, 1974.
Boyle, Robert: (1627-1691) Irish natural philosopher; one of the founders of modern chemistry and Boyle’s law: “Temperature remaining constant, volume of a given mass of gas varies inversely as its pressure.”
Bragg, Sir William: (1862-1942) British physicist known for researches on the behaviour of crystals with regard to X-rays incident upon them. Author of the book: “Atomic Structure of Minerals”.

Cavendish, Henry: (1731-1810) English physicist and chemist; he discovered properties of hydrogen in 1766 and identified it as an element.
Chadwick, Sir James: (1891-1974) British physicist. He discovered the particle in an atomic nucleus which became known as the neutron, because it has no electric charge.
Chandrasekhar, Dr Subramanian: He was a scientist of Indian origin settled in the U.S.A., who shared the 1983 Nobel Prize for physics with an American, William Fowler. He was one of the most outstanding astrophysicist of the world.
His theory of stellar evolution—the birth and death of stars—is more than 30 years old. When he first propounded his finding that old stars just collapse and disappear in the light of denser stars of low light, the world’s top-flight astronomers laughed at him and rejected his theory. A disappointed Dr Chandrasekhar left Trinity, Cambridge, to pursue his research in the University of Chicago. Over the next two decades the “Chandrasekhar Limit” became an intrinsic part of text-books on advanced astrophysics. Global recognition and awards poured in, and the 1983 Nobel Prize tops a remarkable career spanning almost half a century.
Charak: (c.A.D. 80-180) was a court physician to Kushan king Kanishka. His writings are invaluable in the study of Hindu medicine.
Charles, Jacques Alexander Cesar: (1746-1823) a French scientist of great repute. He was the first to make a balloon ascension with hydrogen. He is known for his work on the effect of temperature on the volume of gases.
Clarke, Arthur C.: He is known for his suggestion of the concept of Geostationary Orbit.
Clark Maxwell, James: (1831-79) British physicist. His theoretical work prepared the way for wireless telegraphy and telephony. His principal works include: Perception of Colour, Colour Blindness, Theory of Heat, Electricity and Magnetism, Matter and Motion.
Claude, Albert: is a biologist of Luxembourg who shared the 1974 Nobel Prize in Medicine. His field of research relates to causes and treatment of cancer.
Columbus, Christopher: (1446-1506) A well-known Italian navigator set out on his first voyage in 1492; he discovered West Indies Islands, Cuba and Bahamas; he also discovered South America in 1498.
Cooper, Leon N.: Of the Brown University, Providence, Rhode Island (U.S.A.) was one of the three co-winners of the Nobel Prize in Physics, 1972 for researches into the theory of super-conductivity.
Copernicus: (1413-1543) A prominent astronomer of Poland who discovered the “Solar System”.
Cornforth, John Warcup: co-winner of the 1975 Nobel Prize in Chemistry is a deaf professor. He is an Australian living in England. His chief distinction is mapping out the formation of cholesterols which he calls “a great discovery” and contains the key to, for instance, sex hormones.
Curie, Madame Marie: (1867-1934) Polish physicist and chemist; famous for her discovery of radium was awarded Nobel Prize in chemistry in 1911 and shared Nobel Prize in physics in 1903 with her husband and Becquerel.
Dalton, John: (1766-1844) British scientist. He was founder of the Atomic Theory and law of Multiple Proportions.
Darwin, Charles: (1809-82) was the British scientist who discovered the principle of natural selection. His famous work is “The Origin of Species”.
Davy, Sir Humphrey: (1771-1829) British chemist. First to apply electric current for the isolation of metals. Studied anaesthetic action of nitrous oxide, properties of chlorine and alkali metals.
Debreu, Gerard: Gerard Debreu of the University of California at Berkeley, who has been awarded the 1983 Nobel memorial prize in economics is known for his research on market equilibrium in which he “incorporated new analytical methods into economic theory”.
Mr Debreu has expanded on a mathematical model designed by the two men in the early 1950s that confirmed the logic of Adam Smith’s “theory of general equilibrium” in which prices supply and demand tend to reach a balance within a free market economy.
Delbrueck, Dr Max: is a German-born American doctor working at the California Institute of Technology. He was one of the three American co-winners of the Nobel Prize for Medicine, 1969 for discoveries in molecular genetics.
De Vries: is known for Mutation theory.
Dhanvantri: a great physician during the reign of Chandragupta Vikramaditya (375-413 A.D.).
Dhawan, Prof Satish: He is former Chairman of the Indian Space Research Organisation (ISRO). Under his dynamic leadership India entered Space Age by launching “Aryabhata”, a scientific satellite, into space on April 19, 1975.
Edelman, Dr Gerald Maurice: of U.S.A. is co-winner of the Nobel Prize for Medicine, 1972. He is known for researches into the chemical structure of blood-proteins or antibodies which shield the human body against infection. He shared the prize with Dr Rodney Robert Porter of Oxford. The two Nobel-laureates were able to break the giant molecules formed by antibodies into their component sections.
Edison, Thomas Alva: (1847-1931) American inventor of Dutch-Scottish parentage. He started life as a newsboy and then a telegraph operator. His inventions include: phonograph, the incandescent lamp, a new type of storage battery, an early form of cinematography etc.
Einstein, Prof Albert: (1879-1955) was German-Swiss world-famous scientist known for his theory of relativity. He was awarded Nobel Prize for his work on photoelectric effect.
Faraday, Michael: (1791-1867) An eminent English scientist; showed great prominence in the field of electromagnetism; discovered the laws of electrolysis and wrote a number of useful books on the subject.
Fleming, Alexander: (1881-1955) British bacteriologist. His notable discovery was lysozyme (1922), followed by penicillin (1929)—an antibiotic drug.
Fleming, Sir John Ambrose: (1849-1945) British physicist and engineer who was pioneer in the development of the telephone, electric light and radio.
Fraunhofer: German physicist. He gained prominence on the researches of ‘Light’ while performing spectrum-analysis of Sunlight; he discovered the spectrum to be crossed with some indifferent black lines. And the lines are so named as Fraunhofer Lines.
Freud, Sigmund: (1856-1939) originator of psycho-analysis, born of Jewish parents. Works: The Interpretation of Dreams; The Psychopathology of Every-day Life; The Ego and the Id; Civilization and Its Discontents.
Gabor, Dr Dennis: Who won the 1971 Nobel Prize award for Physics is a 71-year old British electrical engineer working as a scientist in the U.S.A. He was cited for his “invention in development of the holographic method”—three dimensional photography. Dr Gabor was the 16th Briton to have won the Nobel Prize in Physics. He was born and educated in Hungary. He later worked as research engineer in Germany and came to join the staff of the Imperial College in London in 1949. He invented holography in the late forties. But the science became fully developed with the coming of the laser in 1960. A holographic image is so lifelike that a viewer can see around things in a holograph by moving his head just as he looks around the real object.
Galileo: (1564-1642) Italian scientist. He was professor of mathematics. His view that all falling bodies, great or small, descend with equal velocity, made him unpopular with the orthodox scientists. He improved telescope and with it was the first man to see the satellites of Jupiter.
Gell-Mann, Prof Murray: was the recipient of the 1969 Nobel Prize for Physics. He is a teacher in the California Institute of Technology. Born in New York in 1929, Prof Gell-Mann has been the leading theorist in elementary particle research for the last 15 years. He was the 28th American to be awarded the Nobel Prize for Physics in which the U.S.A. now leads. The Nobel Prize was given to him for “his classification of elementary particles and their interactions”.
Goddard, Robert H.: was an American who mentioned the possibility of shooting a rocket to the moon in a paper entitled “A Method of Reaching Extreme Altitudes” published by him in 1919. By 1926 he had put some of his ideas into practice. He is looked upon as one of the pioneers of space research.
Graham, Thomas: (1805-1914) Scottish chemist called the “father of colloidal chemistry”. He did remarkable work on diffusion of substances in solution.
Heisenberg: is known for his theory of Uncertainty Principle.
Hahn, Otto: was a German pioneer of nuclear research. He won the Nobel Prize for Chemistry in 1944. It was Hahn who had proved in 1938 that atomic fission can be achieved by bombarding uranium with neutrons. The discovery revolutionised atomic science.
Hall, Charles Martin: (1863-1914) American chemist who discovered the modern method of extraction of aluminium by electrolysis of bauxite in 1886.
Harvey, William: (1578-1675) English physician who discovered the circulation of blood.
Herzberg, Dr Gehard: has been awarded the 1971 Nobel Prize in Chemistry, for his researches in atomic and molecular structures, particularly free radicals. He is the first Canadian to win a Nobel Prize in Chemistry.
Holley, Robert: Co-winner of the Nobel Prize for Medicine, 1968, belongs to Cornell. His researches into the genetic code and its function in building protein led to the discovery of the complete structure of a transfer RNA molecule and the way it works.
Hopkins, Sir Frederick Gowland: He was an eminent English biochemist famous for his important work on proteins and vitamins. He was awarded the Nobel Prize in medicine in 1929 for the discovery of Vitamin D.
Hoyle, Fred: is a British scientist and science-fiction writer who won the £ 1,000 Kalinga Prize in 1968.

Jenner, Edward: (1749-1823) Eminent English physician who discovered the vaccination system of alleviating small pox.
Josephson, Dr Brian: is a British scientist who co-shared the 1973 Nobel Prize for physics for “his theoretical predictions of the properties of a super-current through a tunnel barrier, in particular those phenomena which are generally known as Josephson effects”.
Joshi, Prof S.S.: He has done commendable work on physical and chemical reactions under electric discharge on active nitrogen; colloids; hydrogen peroxide; permanganates and a phenomenon called “Joshi Effect”.
Joule, James Prescott: (1874-1937) a great English physicist who first demonstrated that mechanical energy can be converted into heat.
Kepler, Johannes: (1571-1630) German astronomer. He discovered 3 laws of planetary motion that bear his name viz., (1) The orbit of each planet is an ellipse with the sun at one of the foci; (2) the Radius vector of each planet describes equal areas in equal times; (3) The squares of the periods of the planets are proportional to the cubes of their mean distances from the sun.
Kepler had evolved a set of laws governing man in space with rare prescience. In a kind of allegory, he referred to the dangers of solar radiation, the need to overcome gravitational resistance, gravitational capture of spacecraft by the moon etc. What he wrote nearly 360 years ago was, however, little understood and his family was persecuted for it. His mother had to die in jail having been condemned as a witch.
Khorana Hargobind: who shared with two others the 1968 Nobel Prize for Medicine is an Indian by birth and an American by domicile. He deciphered the genetic code and later created an artificial gene.
Krishnan, Dr K.S.: (born 1898) collaborated with Sir C.V. Raman in the discovery of “Raman Effect”. President, Indian Science Congress, 1949; delegate to several international scientific conferences; Director, National Physical Laboratory, New Delhi.
Lavoisier, A.L.: (1743-1794) French chemist; established law of Indestructibility of Matter, Composition of Water and Air.
Lister, Joseph: (1827-1912) British surgeon. He was the first to use antiseptic treatment for wounds; introduced antiseptic surgery.
Lodge, Sir Oliver Joseph: (1851-1940) British physicist. He is chiefly known for his researches on radiation, and the relation between matter and ether.

Lovell, Sir Bernard: He is professor of Radio-Astronomy in the University of Manchester and is also Director of the Jodrell Bank Observatory. He remains very much in the news for tracking space-ships.
Lysenko: Author of Agro-biology, Lysenko gained fame as a Soviet geneticist. In 1948, he declared the Mendelian theory obsolete and erroneous.
Marconi: (1873-1937) Italian scientist; pioneer in wireless telegraphy and radio.
Max Planck: He was a German theoretical physicist who formulated the quantum theory which revolutionized physics. He was awarded the Nobel Prize in 1918.
Mendel, Johann Gregory: (1822-84) Austrian monk and naturalist whose discovery of certain principles of inheritance (heredity) is of deep significance in the study of biology.
Mendeleef, D.I.: (1834-1901) a Russian chemist, founder of periodic law and famous for the development of petroleum and other industries in Russia.
Meyer, Victor: (1848-1897) discovered a method to determine the molecular weights of volatile substances.
Morley, Edward William: (1818-1923) American chemist and physicist best known for his work in determining the composition of water by weight.
Moseley, Henry G.: (1887-1915) British physicist who did valuable work on atomic structure, and in 1913, devised the series of atomic numbers.
Nagarjuna: the renowned chemist of Buddhist era whose works are mostly preserved in China and Tibet. A great Philosopher and Chemist. He makes a mention of crucibles, distillation stills, sublimation, colouring process, alloying of metals, extraction of copper and use of many metallic oxides in medicines. About chemistry he said, “As long as the science of chemistry prevails, let hunger, pain and poverty not torment men.”
Nag-Chowdhury, B.D.: an eminent Indian nuclear physicist, known all over the world.
Narlikar, J.V.: Indian scientist; co-author of Hoyle-Narlikar Theory of continuous creation. The theory of which he is co-author has been hailed as supplying some important missing links in Einstein’s theory of Relativity. The new theory of gravitation propounded by both the scientists, Narlikar and Hoyle, shows that gravitation is always attractive and there is no gravitational repulsions.
Newton, Sir Isaac: (1642-1727) was the British natural philosopher. He discovered binomial theorem; the differential and integral calculus. He expounded the universal law of gravitation. He is author of Principia Mathematica.
Nirenberg, Dr Marshall: is a U.S. molecular biologist who shared the 1968 Nobel Prize for Medicine with Dr Robert Holley and Dr Hargobind Khorana. Nirenberg is the author of a very simple but ingenious experiment which helped a great deal in clarifying the general character of the genetic code.
Oberth, Hermann: is a Rumanian-German Professor who is credited with establishing the experimental basis of modern rocketry. In 1923, the publication of his book, “The Rocket into Interplanetary Space” aroused great interest in space travel.
Ohm, George Simon: (1787-1854) physicist and mathematician; discovered the law known as Ohm’s Law.
Onsager, Lars: is a U.S. Professor who became a Nobel laureate in 1968 by winning the prize for Chemistry “for the discovery of the reciprocal relations bearing his name which are fundamental for the thermo-dynamics of irreversible processes”.
Paraceisus: (1493-1541) a Swiss mystic and chemist. He was the first to employ laudanum and antimony in Pharmacy.
Parson, Sir Charles: (1854-1931) British engineer; inventor of Parson steam turbine.
Pasteur, Louis: (1822-95) He was a French chemist who discovered the causes of fermentation in alcohol and milk and founded the Pasteur Institute in 1888. He made researches in silkworm disease, anthrax, and hydrophobia.
Pauling, Linus: American bio-chemist. He applied the quantum theory to chemistry and was awarded Nobel Prize (1954) for his contribution to the electrochemical theory of valency.
Porter, Dr Rodney Robert: is Professor of Biochemistry in Oxford University. Dr Porter is known for his discoveries relating to the chemical structure of antibodies.
Priestley, Joseph: (1733-1804) British Chemist; discovered oxygen and methods of collecting gases.
Pythagoras: is known as the father of Geometry.
Rainwater, James: of the U.S.A. who co-shared the 1975 Nobel Prize in Physics is known for the development of the theory that atomic nucleus is not always spherical but can also be egg-shaped which has no immediate practical meaning but is extremely essential to scientists.
Ramanna, Dr Raja: former Director of Bhabha Atomic Research Centre at Trombay. He was one of the Indian scientists associated with staging India’s first nuclear blast at Pokhran on May 18, 1974.
Raman, Sir C.V.: (1888-1970) Eminent Indian Scientist (F.R.S.) National Professor of Physics and founder Director of Raman Research Institute, Bangalore. He was awarded Nobel Prize for his discovery of ‘Raman Effect’ (Feb 28, 1928). His work on study of crystal structure is of unique importance. Feb 28 is celebrated every year as National Science Day.
Ramanujan, Srinivas: (1887-1920) Indian mathematician who contributed to the theory of numbers, theory of partitions, and the theory of continued fractions.
Ramsay, Sir William: (1852-1916) English chemist who discovered helium and later on neon, argon in collaboration with Rayleigh and others. He was awarded Nobel Prize in 1904.
Rao, Prof U. Ramachandra: is the Director of Indian Scientific Satellite Project (ISSP) at Peenya near Bangalore.
Ray, Sir P.C.: (1861-1944) founder of Indian Chemical Society and Bengal Chemical and Pharmaceutical Works Ltd., and author of ‘Hindu Chemistry’. His work about nitrous acid and its salts deserves special mention.
Richards, T.W.: He was Prof of Chemistry at Harvard University in U.S.A. He did notable work in the accurate determination of atomic weights and was awarded Nobel Prize in 1916.
Roger Bacon: (1214-1294) He was inventor of Gun Powder and founder of experimental science; man of remarkable gifts and inventive power.
Rontgen, W. Konrad: (1845-1923) German physicist. He discovered X-rays, also called Rontgen rays. He was awarded the first Nobel Prize in 1901 for discovery of X-Rays.
Ross, Ronald: (1857-1932) leading British physician who discovered the cause of Malaria; awarded Nobel Prize for medicine in 1902.
Rutherford, Daniel: (1749-1819) a Scottish scientist who is given the credit for the discovery of nitrogen.
Rutherford, Lord: (1871-1937) won a Nobel Prize for his work on structure of atom and radio-activity.
Ryle, Sir Martin: of the U.K. who shared the 1974 Nobel Prize in Physics is known for the development of “aperture synthesis” technique designed to identify stellar objects through radio signals.
Saha, Dr Meghnad: (1893-1956) late Palit Prof of Physics, University College of Science and Technology, Calcutta University—well known for his researches in nuclear physics, cosmic rays, spectrum analysis and other branches of theoretical physics.
Sanger, Dr Frederik: British scientist awarded Nobel Prize in Chemistry in 1958 for his work in determining the composition of the insulin molecule. By his discovery he has put science a step forward towards knowing how disease attacks the human body. In 1980, he became only the fourth person ever to be awarded a second Nobel Prize.
Sarabhai, Dr Vikram A.: former Chairman of India’s Atomic Energy Commission and the Indian Space Research Organization (ISRO) died on December 30, 1971. Dr Sarabhai was an eminent physicist mainly interested in the astrophysical implications of Cosmic Ray Time Variations.
Sen, P.K. (Dr): is the Indian surgeon who performed Asia’s first heart transplant operation in Mumbai.
Simpson, Sir James Young: (1811-70) British physicist who was largely instrumental in the introduction of chloroform as an anaesthetic in 1847.
Soddy, Frederick: (1877-1956) British physical chemist. He was a pioneer of research into atomic disintegration. He coined the term “isotopes”; did classic work on radioactivity.
Solvay, Earnest: (1838-1922) Belgian chemist known for devising a process known after his name for manufacture of sodium carbonate.
Susruta: was a fourth century Hindu surgeon and physician. He wrote an important book on medicine and also a thesis on the medical properties of garlic.
Sutherland, Dr Earl W.: was the recipient of the Nobel Prize for Medicine, 1971. He is credited with the discovery that the hormones in the human body produce another substance known as cyclic A.M.P., which activates them and controls the body’s cells. He has demonstrated that changes in the level of cyclic A.M.P. in the body can influence its disease-resisting capacity. This discovery opens up new vistas for the development of drugs that can treat diseases which have so far been regarded as incurable.
Teller, Edward (Dr): is a U.S. nuclear scientist who has played a major role in developing the hydrogen bomb. He is in fact known as the “father of the H-bomb”.
Thomson, Sir J.J.: (1856-1940) British physicist. He discovered the electron which inaugurated the electrical theory of the atom. He is regarded as the founder of modern physics.
Tsiolkovsky: was a Russian teacher who in 1903 published a treatise presenting remarkably accurate calculations on rocket dynamics and space-travel. He is looked upon as the earliest among the pioneers who laid the foundations of space exploration. The Russians call him the “Father of Rocketry”.
Varahmihira: (505-587) was a distinguished Indian astronomer, mathematician and philosopher. He was one of the nine gems of the court of king Vikramaditya.
Verne, Jules: (1828-1905) French science-fiction writer was author of “From the Earth to the Moon” published in 1865. The book carried a more or less accurate prediction of the launching and flight of Apollo-8.
Volta, A.: (1745-1827) Italian physicist and pioneer of electrical science; invented voltaic pile, the electrophorus and electroscope. The volt is named after him.
Voronoff, S.: Russian scientist best known for his method of preventing or delaying senility by grafting healthy animal glands, into the human body.
Watson and Crick: known for DNA double helix.
Watson-Watt, Sir Robert: British physicist. He developed radar.
Watt, James: (1736-1819) was Scottish engineer. He invented steam engine.
Yukawa, Dr H.: (born 1907) predicted a new particle meson which holds the protons and neutrons of the atomic nucleus. He is the first Japanese to win the Nobel Prize in Physics (1949).

World Capitals

Country	Capital
Afganistan	Kabul
Albania	Tirana
Algeria	Algiers
Andorra	Luanda
Antigua & Barbuda	St. Jon's
Argentina	Buenos Aires
Armenia	Yarevan
Australia	Canberra
Austria	Vienna
Azerbaijan	Baku
Bahamas	Nassau
Bahrain	Manama
Bangladesh	Dhaka
Barbados	Bridgetown
Belarus	Minsk
Belgium	Brussels
Belize	Belmopan
Benin	Porto Novo
Bhutan	Thimphu
Bolivia	Sucre/ La Paz
Bosnia-Herzegovina	Sarajevo (Bosnia)
Botswana	Gabarone
Brazil	Brasilia
Brunei Darussalam	Bandar Seri Begawan
Bulgaria	Sofia
Burkina Faso	Ouagadougou
Burundi	Bujumbura
Cambodia	Phnom Penh
Cameroon	Yaounde
Canada	Ottawa
Cape Verde	Praia
Central African Republic	Bangui
Chad	N'djamena
Chile	Santiago
China	Beijing
Colombia	Bogotá
Comoros	Moroni
Congo (Democratic Republic of Congo)	Kinshasa
Congo (Republic of Congo)	Brazzaville
Costa Rica	San Jose
Cote D'ivoire	Yamoussoukro
Croatia	Zagreb
Cuba	Havana
Cyprus (Republic of Cyprus)	Nicosia
Northern Cyprus  (Turkish Republic of Cyprus)	Nicosia North
Czech Republic	Prague
Denmark	Copenhagen
Djibouti	Djibouti
Dominica	Roseau
Dominican Republic	Santo Domingo
Ecuador	Quito
Egypt	Cairo
El Salvador	San Salvador
Equatorial Guinea	Malabo
Eritrea	Asmara
Estonia	Tallinn
Ethiopia	Addis Ababa
Fiji	Suva
Finland	Helsinki
France	Paris
Gabon	Libreville
Gambia	Banjul
Georgia	Tbilisi
Germany	Bonn
Ghana	Accra
Greece	Athens
Granada	St. George's
Guatemala	Guatemala City
Guinea	Conakry
Guinea-Bissau	Bissau
Guyana	Georgetown
Haiti	Port-Au-Prince
Hungary	Budapest
Iceland	Reykjavik
India	New Delhi
Indonesia	Jakarta
Iran	Tehran
Iraq	Baghdad
Ireland	Dublin
Israel	Jerusalem
Italy	Rome
Jamaica	Kingston
Japan	Tokyo
Jordan	Amman
Kazakhstan	Astana
Kenya	Nairobi
Kiribati	Bairiki
Korea, North	Pyongyang
Korea, South	Seoul
Kuwait	Kuwait
Kyrgyzstan	Bishkek
Laos	Vientiane
Latvia	Riga
Lebanon	Berut
Lesotho	Maseru
Liberia	Monrovia
Libya	Tripoli
Liechtenstein	Vaduz
Lithunia	Vilnius
Luxembourg	Luxembourg
Macedonia	Skopje
Madagascar	Antananarivo
Malawi	Lilongwe
Malaysia	Kuala Lumpur
Maldives	Male
Mali	Bamako
Malta	Valletta
Marshall Islands	Dalap-Uliga-Darrit
Mauritania	Nouakchott
Mauritius	Port Louis
Mexico	Mexico City
Micronesia	Palikir
Moldova	Chisinau
Monaco	Monaco
Mongolia	Ulan Batur
Morrocco	Rabat
Mozambique	Maputo
Myanmar	Yangon
Namibia	Windhoek
Nauru	Yaren
Nepal	Kathmandu
The Netherlands	Amsterdam
New Zealand	Wellington
Nicaragua	Managua
Niger	Niamey
Nigeria	Abuja
Norway	Oslo
Oman	Muscat
Pakistan	Islamabad
Panama	Panama City
Papua New Guinea	Port Moresby
Paraguay	Asuncion
Peru	Lima
The Philippines	Manila
Poland	Warsaw
Portugal	Lisbon
Qatar	Doha
Romania	Bucharest
Russia	Moscow
Rwanda	Kigali
St. Kitts and Nevis	Basseterre
St. Lucia	Castries
St. Vincent and The Grenadines	Kingstown
San Marino	San Marino
Samoa	Apia
Sao Tome and Principe	Sao Tome
Saudi Arabia	Riyadh
Senegal	Dakar
Seychelles	Victoria
Sierra Leone	Freetown
Singapore	Singapore City
Slovakia	Bratislava
Slovenia	Ljublijana
Solomon Islands	Honiara
Somalia	Mogadishu
South Africa	Pretoria/ Cape Town
Spain	Madrid
Sri Lanka	Colombo
Sudan	Khartoum
Suriname	Paramaribo
Swaziland	Mbabane
Sweden	Stockholm
Switzerland	Berne
Syria	Damascus
Taiwan	Taipei
Tajikistan	Dushanbe
Tanzania	Dar -E_Salaam
Thailand	Bangkok
Togo	Lome
Tonga	Nuku'alofa
Trinad and Tobago	Port-of Spain
Tunisia	Tunis
Turky	Ankara
Turkmenistan	Ashgabat
Tuvalu	Fongafale
Uganda	Kampala
Ukraine	Kyiv
United Arab Emirates	Abu-Dhabi
United Kingdom	London
United States	Washington DC
Uruguay	Montevideo
Uzbekistan	Tashkent
Vanuatu	Vila
Vatican City State	Vatican City
Venezuela	Caracas
Vietnam	Hanoi
Yemen	Sana'a
Yugoslavia	Belgrade
Zambia	Lusaka
Zimbabwe	Harare