A. 1874 B. 1840 C. 1895 D. 1900 Explanation: Joseph F. Glidden was born in New York on Jan. 18,…
A. Isaac Newton B. Albert Einstein C. Benjamin Franklin D. Marie Curie
A. 1950s B. 1960s C. 1970s D. 1980s Explanation: On September 12, 1958, Jack Kilby demonstrated the first working IC…
A. Biro Brothers B. Waterman Brothers C. Bicc Brothers D. Write Brothers Explanation: The Hungarian brothers, Laszlo and George Biro,…
A. Pneumatic rubber tire B. Automobile wheel rim C. Rubber boot D. Model airplanes Explanation: Invented in 1887.
A. Diving bell B. Steam boat C. Hot air balloon D. Rotary steam engine
A. Dynamite B. Ladders C. Race cars D. Parachute Explanation: Many people who tried to test the first parachutes died…
A. Sir Frank Whittle B. Gottlieb Daimler C. Roger Bacon D. Lewis E. Waterman Explanation: Dr. Hans von Ohain and…
A. Michael Faraday B. Fahrenheit C. Sir Alexander Graham Bell D. Thomas Alva Edison Explanation: Gramophone was invented by Thomas…
A. Bifocal spectacles B. Radio C. Barometer D. Hygrometer Explanation: Invented in 1760.