Inventions and inventors

InventionInventorYearCountry
Air brakeGeorge Westinghouse1869USA
Air conditionerWillis Carrier1902USA
Air pumpOtto von Guericke1649Germany
Atom BombJulius Robert Oppenheimer1945USA
BakeliteLeo Henricus Arthur Baekeland1907Belgium/U.S
BarometerEvangelista Torricelli1643Italy
Bifocal LensBenjamin Franklin1784USA
CementJoseph Aspdin1824UK
Centrigrade scaleAnders Celsius1742Sweden
ChronometerJohn Harrison1735England
Clock (pendulum)Christiaan Huygens1656Netherlands
CrescographJagdish Chandra Bose1937India
Diesel EngineRudolf Diesel1895Germany
Digital cameraSteven Sasson1975USA
Disc Brakesrederick William Lanchester1902UK
DynamiteAlfred Nobel1867Sweden
Electric BatteryAlessandro Volta1800Italy
ElevatorElisha G. Otis1852USA
Fountain PenLewis E. Waterman 1884USA
GliderGeorge Cayley1804UK
GramophoneThomas Alva Edison1878USA
GuillotineJoseph-Ignace Guillotin1789France
HovercraftChristopher Cockerell1955UK
JeansLevi strauss, Jacob davis1871Germany, Latvia
KaleidoscopeDavid Brewster1816Scotland
Laser PrinterGary Starkweather1969USA
Lawn mowerEdwin Beard Budding1830England
Magnetic TapeFritz Pfluemer1928German-Austrian
Mercury ThermometerDaniel Gabriel Fahrenheit1709Germany
Microwave OvenPercy Spencer1947USA
Mobile PhoneMartin Cooper1973USA
Nuclear reactorEnrico fermi1942Italy, america
Paper clipJohann Vaaler1899Norway
Parking meterCarlton Cole Carl Magee1935USA
PianoBartolomeo Cristofori1700(Decade)Italy
PowerloomEdmund Cartwright1785UK
Pressure CookerDenis Papin1679France
RadioGuglielmo Marconi1895Italy
RaincoatCharles Macintosh1824Scotland
RevolverSamuel Colt1835USA
Richter scaleCharles Francis Richter1935USA
Roller SkatesJohn Joseph Merlin1760Belgium
Safety PinWalter Hunt1849USA
Space penPaul C. Fisher1968USA
Seed drillJethro Tull1701UK
Spinning JennyJames Hargreaves1764England
StethoscopeRane Laennec1816France
SubmarineDavid Bushnell1776USA
WWWTim berners lee, Robert cailliau1989UK,Belgium