Inventions and inventors

Invention Inventor Year Country
Air brake George Westinghouse 1869 USA
Air conditioner Willis Carrier 1902 USA
Air pump Otto von Guericke 1649 Germany
Atom Bomb Julius Robert Oppenheimer 1945 USA
Bakelite Leo Henricus Arthur Baekeland 1907 Belgium/U.S
Barometer Evangelista Torricelli 1643 Italy
Bifocal Lens Benjamin Franklin 1784 USA
Cement Joseph Aspdin 1824 UK
Centrigrade scale Anders Celsius 1742 Sweden
Chronometer John Harrison 1735 England
Clock (pendulum) Christiaan Huygens 1656 Netherlands
Crescograph Jagdish Chandra Bose 1937 India
Diesel Engine Rudolf Diesel 1895 Germany
Digital camera Steven Sasson 1975 USA
Disc Brakes rederick William Lanchester 1902 UK
Dynamite Alfred Nobel 1867 Sweden
Electric Battery Alessandro Volta 1800 Italy
Elevator Elisha G. Otis 1852 USA
Fountain Pen Lewis E. Waterman 1884 USA
Glider George Cayley 1804 UK
Gramophone Thomas Alva Edison 1878 USA
Guillotine Joseph-Ignace Guillotin 1789 France
Hovercraft Christopher Cockerell 1955 UK
Jeans Levi strauss, Jacob davis 1871 Germany, Latvia
Kaleidoscope David Brewster 1816 Scotland
Laser Printer Gary Starkweather 1969 USA
Lawn mower Edwin Beard Budding 1830 England
Magnetic Tape Fritz Pfluemer 1928 German-Austrian
Mercury Thermometer Daniel Gabriel Fahrenheit 1709 Germany
Microwave Oven Percy Spencer 1947 USA
Mobile Phone Martin Cooper 1973 USA
Nuclear reactor Enrico fermi 1942 Italy, america
Paper clip Johann Vaaler 1899 Norway
Parking meter Carlton Cole Carl Magee 1935 USA
Piano Bartolomeo Cristofori 1700(Decade) Italy
Powerloom Edmund Cartwright 1785 UK
Pressure Cooker Denis Papin 1679 France
Radio Guglielmo Marconi 1895 Italy
Raincoat Charles Macintosh 1824 Scotland
Revolver Samuel Colt 1835 USA
Richter scale Charles Francis Richter 1935 USA
Roller Skates John Joseph Merlin 1760 Belgium
Safety Pin Walter Hunt 1849 USA
Space pen Paul C. Fisher 1968 USA
Seed drill Jethro Tull 1701 UK
Spinning Jenny James Hargreaves 1764 England
Stethoscope Rane Laennec 1816 France
Submarine David Bushnell 1776 USA
WWW Tim berners lee, Robert cailliau 1989 UK,Belgium