It has been difficult for many aspirants to collect such type of data and information that is helpful for the preparation of general knowledge papers for competitive examinations. the following information has been collected from different authentic sources. this contains information regarding everyday science. it also contains information regarding world general knowledge.
⚀Galileo was first to discover rotation of earth ⚀ Kohler and Milstein discovered monoclonal antibodies. ⚀ Photography was invented by Mathew Barry Albert Sabin invented Polio vaccine (oral) ⚀ Dmitry Ivanovich Mendeleyev (Russian) published his first version of periodic table in 1869. ⚁ X-ray machine was invented by James Clark ⚀ Arthur Campton discovered x-rays and Cosmic rays. ⚀ Chadwick discovered Neutron ⚀ Telescope was invented by Galileo Penicillin was discovered by Alexander Fleming ⚀ Noble gases discovered by Cavendish ⚁ Gun powder was first invented in China ⚀ Velocity of light was measured by Michelson ⚀ Archimedes gave laws about Floatation of Bodies ⚀ Balloon fly up in air according to Archimedes’s principle ⚀who performed first heart surgery Dr. Christian Bernard ⚀ First man to receive artificial heart was Dr. Barney B. Clark ⚀ Barometer was invented by Pascal ⚀Robert Hook discovered Cell in 1665 ⚀Aspirin discovered by Dresser ⚀ Atomic theory given by Dalton ⚀Atomic number given by Mosley ⚀ Bacteria by Leeunhock ⚀Blood circulation by William Harvey ⚀Calculus by Newton ⚀Co2 by Fishcer ⚀Chlorine by K. Scheele ⚀Oxygen by Priestley ⚀ Hydrogen by Cavandish ⚀Super conductor by Bendnorz and Muller in 1987 and were awarded Nobel Prize ⚀ Cotton gin was invented by Eli Whitney. ⚀ Chloroform by Guthrie ⚀Deuterium by Harlod ⚀Dynamite by Alfred B. Nobel ⚀ DNA by Watson Crick ⚀Gene by Johanson ⚀ Chromosomes by Waldyar ⚀ Electric resistance by Ohm ⚀Electrolysis by Faraday ⚀ Electron by J.J. Thomson in 1897 ⚀ Neutron by Chadwick ⚀ Proton by Rutherford ⚀ Positron by Anderson ⚀ Ozone by Echonbein ⚀ Planetary motion by Kepler ⚀ Radioactivity by Bacquerel ⚀ Radium by Currie ⚀ Insulin by Banting & Best ⚀ Human heart transplant by Bernard ⚀ Vaccine (measles) by Peebles ⚀Vaccine (polio) by Salk ⚀Vaccine (rabies) by Louis Pasteur ⚀Vaccine (small pox) by Edward Jenner ⚀ Cause of Malaria was discovered by Ronald Ross ⚀ Adding machine invented by Pascal ⚀ Atom Bomb by Otto Hahn ⚀ Air Brake by George Washington ⚀Air Conditioning by H. Carier ⚀ Airplane (with motor) by Wright Bothers ⚀ Airplane (jet engine) by Ohain ⚀ Automobile (electric) by William Morrison ⚀ Automobile (differential gear) by Benz ⚀Bakelite by Leo Hendricks Backland ⚀Balloon by Mont Golfer ⚀Barometer by Torricelli ⚀ Bicycle (modern) by Starley ⚀ Bifocal lens by Benjamin Franklin ⚀Burner (gas) by Bunsen ⚀Calculating machine (digital) by Charles Babbage ⚀Camera (photographic) by Josef N. Niepce ⚀Carburetor by Daimler ⚀Cement by Joseph Aspidin ⚀Circuit breaker by Hilliard ⚀Computer (electronic) by J.P.Eckert and J.W.Mauckly ⚀Diesel engine by Rudolf Diesel ⚀Digital camera was invented by Eastman Kodak. ⚀Gas engine by Daimler ⚀Electric fan by wheeler ⚀ Electric flat iron by Henry Sealy ⚀Electric generator by Hippolyte Pixie ⚀ Electric motor by Michael Faraday ⚀Motor A.C by Tesla ⚀ Motor D.C by Devin Port ⚀ Electric shaver by W.S. Hadaway ⚀ Electric vaccum cleaner by James Spangler ⚀Electromagnet by William Sturgeon ⚀Electron Microscope by Vladimir Zwryin ⚀Microscope (compound) by Janessen and Leeuhock ⚀ Flying shuttle by Johan Kay ⚀Gun powder by Roger Bacon ⚀Gas engine (four cycle) by Otto and Daimler ⚀Helicopter by Sikorsky ⚀ Interneral combustion engine by Daimler ⚀Jet engine by Frank Whittle ⚀ Knitting Machine by William Lee ⚀ Lamp (incadecent) by Thomas Edision ⚀Montgoflier invented balloon. ⚀Talbot invented photographic paper. ⚀Dickenson invented paper machine. ⚀Blanchard invented parachute. ⚀Colt’s invention is pistol. ⚀Howe was the inventor of sewing machine. ⚀Lamp (mercury) by Hewit ⚀Laser (practical) by Gordon Gould ⚀Laser (operable) by T.H.Mainman ⚀Machine gun by Gatling ⚀Match (safety) by Pasch ⚀Microphone by Graham Bell ⚀Motion pictures (camera) by Edison ⚀Motor cycle by Daimler ⚀Motor scooter by Bradsha ⚀Parachute by Garnerin ⚀Pen (fountain) by Waterman ⚀Pen (ball-point) John Loud Biro ⚀Photoelectric cell by Julius Elster ⚀Piano by Christopher ⚀Printing press (screw type) by Guten Berg ⚀Radar by Watson Watt ⚀Railway (electric) by Werner Siemens ⚀Razor safety by Gillette ⚀Razor (electric) by Jacob Schick ⚀Refrigerator by Ferdinand Carre ⚀Revolver by Samuel Solt ⚀Rifle by August Kotter ⚀Rifle (automatic) by John Moses Browning ⚀Rocket Engine by Goddard ⚀Safety pin by Walter Hunt ⚀Sewing Machine by Elias Howe and Thomas Saint ⚀Stainless steel by Herry Brearley ⚀Stream boat by Abbans ⚀Submarine by Holland ⚀Tank military by Swinton ⚀Telephone by Graham Bell ⚀ Radio by Marconi ⚀ Telescope (reflecting) by Galileo ⚀Telescope (refracting) by Newton ⚀Television (mechanical) by J.L. Baird ⚀Television (electric) by Fransworth ⚀Thermometer by Galilo ⚀Termomter (mercury) by Farhenheit ⚀ Tractor by Robert Keeley ⚀Transformer by William Stanley ⚀Transistor by William Shockley ⚀ Type writer by Henry Mill ⚀Washing machine (electric) by Alva Fisher ⚀Washing machine (manual) by Hamilton E. Smith ⚀Welding (electric) by E. Thomson ⚀Zipper (meshed tooth) by Gideon Sundback ⚀Celcius devised Centrigrade scale ⚀Bacteria were discovered by Louis Pasture. ⚀Ramsay discovered inert gas. ⚀Proton was discovered by Goldstein ⚀Who is credited with the development of polio vaccine? Jonas Salk ⚀Christopher Cockerel invented what: Hovercraft ⚀The electric chair was invented by a dentist ⚀Bardeen and Brattin discovered Semiconductor ⚀What was invented by James Dewer in 1872: Vacuum or thermos flask ⚀ Atom Bomb (Uranium Fission) was invented by Otto Hahn in 1941. ⚀Electron was discovered in 1897. ⚀Oxygen was discovered in 1774 ⚀ Tomas A Edison was American. ⚀ Arthur Compton discovered X-rays and cosmic rays ⚀ Printing press was invented by Johann Gutenberg. ⚀Gramophone was invented by Emile Berliner. ⚀ Blood pressure was discovered by William Harvey. ⚀Magnifying glass was invented by Roger Bacon. ⚀ Insulin was discovered by Banting. ⚀ Michael Faraday invented Electric Motor in belonged to England. ⚀ ECG invented by Einthogen. ⚀ Columbus Day is observed on 2nd Monday in October. ⚀ In 1774 Oxygen was discovered by Priestly. ⚀ In 1589 William Lee invented knitting machine. ⚀ Roman Ruler Julius Caesar invented the calendar that we use today 2000 thousands years ago . ⚀Lipstick was first introduced in 1915 in America. ⚀ Zippers were introduced in 1890. ⚀China was discovered by Marco