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Scientific Inventions and Discoveries


SCIENTIFIC INVENTIONS AND THEIR INVENTORS

Following is the list of Important Scientific Inventions and their Inventors.


TIMELINE / SCIENTIFIC INVENTIONS AND INVENTORS
YearScientific InventionInventor
60A small turbine driven by jets of streamHero
1644Mercury barometerTorricelli
1714Mercury ThermometerFahrenheit
1800BatteryVolta
1821Electric motorFaraday
1832Moving coil-meterSturgeon
1879Electric Light BulbsSwan and Edison
1928Radiation DetectorGeiger and Muller
1942Nuclear ReactorFermi
1947TransistorBardeen, Brattain and Shockley
1960LaserMaiman
AeroplaneWright Brothers
BarometerJorricilli
GalvanometerSweigger
GlassEgypt & Mosopotamia
MapsEvatosthens
Motor A.cTesla
Motor D.cDavenport
RefrigeratorHarrison
Sub MarineHolland
TelevisionJ. Baird
TractorFroelich
RadioMarconi
TelephoneGraham Bell
Steam BoatFulton
Steam EngineSavery
TelescopeLippershey
TransformerWilliam Stanley
RadarWatson Watt
Sewing MachineHome
Washing MachineHurdy Machine
1958Integrated CircuitSt Clair Kilby



SCIENTIFIC DISCOVERIES AND THEIR DISCOVERERS

Following is the list of Important Scientific discoveries and their discoverers.


TIMELINE / SCIENTIFIC DISCOVERIES AND DISCOVERERS
YearScientific DiscoveryDiscoverer
1790Shape of our galaxyHerschel
1895X-RaysRontgen
1896RadioactivityBacquerel
1897ElectronThomson
1898Radium and PoloniumM. Curie
1899Alpha and Beta raysRutherford
1919ProtonRutherford
1929Universe is expandingHubble
1932NeutronChadwick
1938Nuclear FissionHahn



KEY DEVELOPMENTS IN SCIENCE

  • 240 BC - Eratosthenes estimates the diameter of the Earth by comparing shadow angles in different places
  • 1543 - Copernicus suggests that the Sun is at the centre of the Universe, with the Earth and planets moving around it
  • 1600 - Gilbert suggests that the Earth acts like a giant bar magnet
  • 1604 - Galileo shows that all falling objects should have the same, steady acceleration
  • 1621 - Snell states his law of refraction
  • 1654 - Guericke demonstrates atmospheric pressure
  • 1662 - Boyle states his law of gases
  • 1678 - Huyghens puts forward his wave theory of light
  • 1679 - Hooke states his law for elastic materials
  • 1687 - Newton publishes his theory of gravity and laws of motion
  • 1752 - Franklin performs a hazardous experiment with a kite to show that lightning is electricity
  • 1803 - Dalton suggests that matter is made up of atoms
  • 1803 - Young demonstrates the wave nature of light
  • 1825 - Ampere works out a law for the force between current-carrying conductors
  • 1827 - Ohm states his law for metal conductors
  • 1832 - Faraday demonstrates electromagnetic induction
  • 1849 - Fizeau measures the speed of light
  • 1852 - Kelvin states the law of conservation of energy
  • 1864 - Maxwell predicts the existence of radio waves and other electromagnetic waves
  • 1877 - Cailletet liquefies oxygen
  • 1888 - Hertz demonstrates the existence of radio waves
  • 1894 - Marconi transmits the first radio signals
  • 1900 - Plank proposes the Quantum theory
  • 1905 - Einstein uses the quantum theory to explain the photoelectric effect, and publishes his special theory of relativity
  • 1911 - Rutherford proposes a nuclear model of the atom
  • 1913 - Bohr uses the quantum theory to modify Rutherford's model of the atom
  • 1916 - Einstein publishes his general theory of relativity
  • 1924 - De Broglie suggests that particles can behave as waves
  • 1925 - Schrodinger developes a wave-machine model of the atom
  • 1927 - Lemaitre suggests the possibility of the Big Bang
  • 1929 - Hubble discovers that the Universe is expanding
  • 1932 - Cockroft and Walton produce the first nuclear change using a particle accelerator
  • 1957 - First artificial satellite, Sputnik I, put into orbit
  • 1963 - First geostationary communications satellite
  • 1969 - First manned landing on the Moon
  • 1971 - Intel Corporation makes the first microprocessor
  • 1977 - First experimental evidence of quarks
  • 1990 - Hubble Space Telescope launched