| Automatic calculator |
Wilhelm Schickard |
1623 |
Germany |
| Adding machine |
Blaise Pascal |
1642 |
France |
| Animation |
Emile Reynaud |
1892 |
France |
| Aspirin |
Dr. Felix Hoffman |
1899 |
Germany |
| Antiseptic |
Dr. Joseph Lister |
1867 |
England |
| Atom Bomb |
Julius Robert Oppenheimer |
1945 |
U.S |
| Barometer |
Evangelista Torricelli |
1643 |
ITALY |
| Ballpoint Pen |
László Bíró |
1938 |
France |
| Bifocal Lens |
Benjamin Franklin |
1784 |
U.S |
| Cement |
Joseph Aspdin |
1824 |
England |
| Cadmium |
Friedrich Stromeyer |
1817 |
Germany |
| Clarinet |
Johann Christoph Denner |
1690 |
Germany |
| Cash register |
James Ritty |
1879 |
USA |
| Cinema |
Lumiere brothers |
1894 |
France |
| Dental Plate |
Anthony A. Plantson |
1817 |
U.S |
| Diesel Engine |
Rudolf Diesel |
1895 |
Germany |
| Dynamite |
Alfred B. Nobel |
1867 |
Sweden |
| Electronic calculator |
IBM |
1954 |
USA |
| Electric stove/cooker |
William S. Hadaway |
1896 |
USA |
| Electric Battery |
Volta |
1800 |
Italian |
| Electric Generator |
Michael Faraday |
1831 |
UK |
| Electric Lamp |
Thomas Alva Edison |
1879 |
U.S |
| Electromagnet |
William Sturgeon |
1824 |
England |
| Elevator |
Elisha G. Otis |
1852 |
U.S |
| Fountain Pen |
Lewis Edson Waterman |
1884 |
U.S |
| Gramophone |
Thomas Edison |
1878 |
U.S |
| Gyrocompass |
Elmer A. Sperry |
1908 |
U.S |
| Hot air balloon |
Josef and Etienne Montgolfier |
1783 |
France |
| Helicopter |
Igor Sikorsky |
1939 |
Russia |
| Jet Engine |
Hans Von Ohain |
1936 |
Germany |
| Light bulb |
Heinrich Goebel |
1854 |
Germany |
| Lightning Conductor |
Benjamin Franklin |
1752 |
U.S |
| Microwave oven |
Percy Spencer |
1947 |
USA |
| Machine Gun |
Richard Gaffing |
1861 |
U.S |
| Motor Scooter |
Greville Bradshaw |
1919 |
England |
| Microscope |
Zacharis Janssen |
1590 |
Netherlands |
| Pacemaker |
Dr. Paul Zoll |
1952 |
USA |
| Pocket watch |
Peter Henlein |
1510 |
Germany |
| Pendulum clock |
Christiaan Huygens |
1657 |
Netherlands |
| Piano |
Bartolomeo Cristofori |
1700 |
Italy |
| Parachute |
Jean Pierre Blanchard |
1785 |
France |
| Revolver |
Samuel Colt |
1835 |
U.S |
| Small Pox Vaccine |
Edward Jenner |
1796 |
England |
| Steam engine |
Thomas Savery |
1698 |
UK |
| Steam boat |
John Fitch |
1786 |
USA |
| Saxophone |
Adolphe Sax |
1846 |
Belgium |
| Steam-powered airship |
Henri Giffard |
1852 |
France |
| Soft contact lenses |
Otto Wichterle |
1961 |
Czech |
| Stethoscope |
René Laennec |
1816 |
France |
| Submarine |
David Bushnell |
1776 |
U.S |
| Synthesizer |
Dr. Robert Arthur Moog |
1964 |
U.S |
| Telegraph |
Samuel Morse |
1844 |
USA |
| Telephone |
Scott Alexander Graham Bell |
1874 |
Canada |
| Time Recorder |
Harlow Bundy |
1890 |
U.S |
| Typewriter |
Peter Mitterhofer |
1864 |
Austria |
| Vaccination |
Dr. Edward Jenner |
1796 |
England |
| Vacuum Cleaner |
Ives McGaffey |
1869 |
U.S |
| X-ray |
Wilhelm Conrad Roentgen |
1895 |
Germany |
Practice Test Exam