List of all important inventions- We have no idea how many types of electrical products or device use every day. We do not know who invented these device or products. So let’s find out who invented this device, A list is given below.
| Device / Discovery / Invention | Discoverer / Inventor | Country | Time or Period |
| Computer | Charles Babbage | 19th Century | |
| Magnifying Glass | Roger Bacon | Great Britain | 13th Century |
| Printing Press | Johannes Gutenberg | German | 1440 |
| Barometer | Evangelista Torricelli | Italian | 1643 |
| Piano | Bartolomeo Cristofori di Francesco | Italian | 18th Century |
| Steam Boat | Denis Papin | French | 1704 |
| Steam Engine | Thomas Newcomen | British | 1712 |
| Watch (Portable Clocks) | Peter Henlein | German | 1509 |
| Optical Microscope | Zacharias Janssen | Dutch | End of 16th Century |
| Telescope | Galileo | Italian | 1609 |
| Watt Steam Engine | James Watt | Scottish | 1776 |
| Mercury Thermometer | Daniel Gabriel Fahrenheit | Polish- German | 1714 |
| Achromatic Lens | John Dollond | British | 1758 |
| Hygrometer | Johann Heinrich Lambert | French | 1755 |
| Atom Bomb | Julius Robert Oppenheimer | 1945 | |
| Electric Motor | Michael Faraday | British | 1821 |
| Typewriter | William Austin Burt | American | 1829 |
| Sewing Machine | Barthélemy Thimonnier | French | 1829 |
| Airplane | Wilber and Orville Wroght | 1903 | |
| Submarine | David Bushnell | American | 1775 |
| Bifocal Lens | Benjamin Franklin | American | 1770s |
| Power Loom | Edmund Cartwright | British | 1784 |
| Gas Turbine | John Barber | British | 1791 |
| Electric Battery | Alessandro Volta | Italian | 1800 |
| Steam Locomotive (Railway) | Richard Trevithick | British | 1804 |
| Stethoscope | René Laennec | French | 1816 |
| Dynamo | Michael Faraday | British | 1831 |
| Telegraph | Samuel Morse | American | 1832-33 |
| Revolver / Gun | Samuel Colt | American | 1835 |
| Pedal Driven Bicycle | Kirkpatrick Macmillan | Scottish | 1839 |
| Pneumatic Tire | Robert William Thomson | Scottish | 1845 |
| Blood Group | Karl Lansdsteiner | 1900 | |
| Automatic Calculator | Wilhlem Schickard | 1623 | |
| Francis Turbine | James Bicheno Francis & Uriah A. Boyden | American | 1848 |
| Refrigerator | Alexander Twining & James Harrison | Scottish | 1850 |
| Elevator/Lift (for the building) | Elisha Otis | American | 1852 |
| Machine Gun | Richard Jordan Gatling | American | 1861 |
| Bicycle Tyres | John Boyd Dunlop | 1888 | |
| Dynamite | Alfred Bernhard Nobel | Swedish | 1867 |
| Air Brake | George Westinghouse | American | 1872 |
| Diesel Engine | Rudolf Diesel | 1895 | |
| Circulation of Blood | William Harvey | 1628 | |
| Telephone | Alexander Graham Bell | Scottish | 1875 |
| Phonograph/ Gramophone | Thomas Edison | 1877 | |
| Film/Movie Camera | Louis Le Thomas Alva Edison | American | 1888 |
| Electric Lamp/Bulb (by using “a carbon filament”) | Thomas Alva Edison | American | 1879 |
| The First Steam-powered Automobile | Nicolas-Joseph Cugnot | French | 1768 |
| Electric Fan | Schuyler Wheeler | 1882 | |
| The First Car Powered by an internal combustion Engine fueled by Hydrogen | François Isaac de Rivaz | French | 1807 |
| Electric Battery | Volta | 1800 | |
| The First Petrol or Gasoline-powered Automobile | Karl Benz German | German | 1886 |
| Inflatable Tire | John Boyd Dunlop | Scottish | 1887 |
| X-Ray | Wilhelm Conrad Röntgen | German | 1895 |
| Electric Motor | Thomas Davenport | 1873 | |
| Radio Telegraph | Guglielmo Marconi | Italian | 1890 |
| Fiber Optics | Narinder Singh Kapany | Indians | 1960 |
| ARPANET, (the precursor to the Internet) | Leonard Kleinrock | American | 1969 |
| Radio | Guglielmo Marconi | Italian | N/A |
| Nuclear Reactor (namely Chicago Pile-1) | Enrico Fermi | Italian | 1942 |
| Transistor | William Shockley, John Bardeen & Walter Brattain | American | 1947 |
| Light Bulb | Thomas Edison | US | 1854 |