Inventions & Discoveries in Science: No.Inventor / DiscoverorInvention / DiscoveryYear 01A.AvogadroMolecular Hypothesis1811 02A.BecquerelPrinciple of Photo-electric Cell1839 03A.BecquerelRadio-activity1896 04A.Binet & T.SimonIntelligence Testing,Modern1905 05A.EinsteinTheory of Relativity1905 06A.LavoisierNature of Combustion1777 07ArchimedesTheory of Displacement of water 3rd century1859 08Charles DarwinTheory of Evolution by Natural by Natural Selection1896 09Charles DarwinOrign of Species1737-53 10C.LinneausClassification of Plants and Animals1869 11D.MendeleevPeriodic Table1912 12F.SoddyTheory of Isotopes1590 13GalileoLaws of FAlling bodies1865 14G.MendelLaws of Heredity1827 15G.S.OhmOhm's Law1827 16Strassman,Hahn,Bohr,FermiUranium Fission Theory1781 17H.CavendishSynthesis of Water1886 18Heinrich HertzElectro-magnetic Waves- 19H.G.KhoranaGenetic Code1913 20H.MoseleyAtomic Number1687 21I.NewtonLaws of Gravitation1687 22J.C.MaxwellElectromagnetic Theory of Light1803 23John DaltonAtomic Theory1808 24John DaltonLaws of Multiple proportion1809 25Joseph Gay-LussacLaws Governing Gases1910 26PavlovTheory of Conditioned Reflex1851 27KelvinDynamite Theory of Heat1876 28Louis PasteurGerm Theory1901 29Max Von PlanckQuantum Theory of radiation1675 30O.RomerVelocity of Light1859 31R.Bunsen & G.KirchhoffSpectrum Analysis1918 32RutherfordAtom Smashing Theory1904 33Sigmund FreudTheory of Psycho-analysis1892 34SteinmetzLaws of Alternating Current1924 35L.Victor de BriglieWave nature of electron1621 36W.ShellLaws of Refraction of Light1895 37RontgenX-rays- 38I.NewtonLaws of motion1800 39VoltaCurrent electricity and electrical battery1774 40PriestleyOxygen1897 41J.J.ThomsonElectron1766 42CavendishHydrogen1841 43FaradayElectromagnetic Induction- 44FaradayLaws of electrolysis1759 45Benjamin FranklinLightning Conductor- 46Louis BraillePrinting for the blind1898 47Madam Marie CurieRadium- 48FunkVitamins1882 49Louis PasteurGerm theory: Hydrophobia Antitoxin;Anti-rabies treatment- 50HahnemannHomoeopathy1932 51BantingInsulin (cure of diabetes)- 52U.N.BrahmachariCure of Kala-azar fever- 53Ronald RossMalaria Parasites1929 54Alexander FlemingPenicillin1796 55Edward JennerSmall-pox vaccination1609 56KeplerLaws of planetary motion1882 57Robert KochTuberculosis bacilli- 58J.DaltonLaw of partial pressures- 59Otto HahnAtom bomb- 60C.V.RamanRaman Effect1867 61Joseph ListerAntiseptic Surgery- 62LeeuwenhockBacteria1628 63HarveyBlood circulation and functioning of heart- 64LandsteinerBlood transfusion- 65Harrison and SimpsonChloroform1884 66Robert KochCholera Bacillus1897 67EijkmanCause of beriberi-