A. Parking Meters B. Vending Machines C. Automatic Telephone Exchanges D. Traffic Lights Explanation: He was an undertaker, and legend…
A. Bottle warmer B. Baby monitor C. Disposable diaper D. Infant carrier Explanation: Ann got the idea for the Snugli…
A. Zoot suit B. Mini-skirt C. Bikini D. Tank top Explanation: The bikini, a two-piece swimsuit named for the Bikini…
A. Leisure suit B. Lava lamp C. Eight-track tape deck D. Hot comb Explanation: Groovy, baby! Lava lamps, which were…
1) Denmark and Italy 2) France and Sweden 3) Japan and Singapore 4) South Korea and Germany Explanation: Henley Passport…
a)August 25 b)August 24 c)August 23 d)August 26 Women's Equality Day is observed every year on August 26 to celebrate…
a)Bahrain b)UAE c)Israel d)Sudan Prime Minister Narendra Modi has been conferred the ‘King Hamad Order of the Renaissance’ by Bahrain's…
A. 1800s B. 1880s C. 1890s D. 1900s Explanation: In 1904, John Ambrose Fleming invented the first practical electron tube…
A. Electric Drill B. Electric Shaver C. Electric Fence D. Electric Heater Explanation: The Electric Drill was the invention of…
A. S. Sperrow B. O. Stricheg C. T. Henman D. C. Cockerell Explanation: Christopher Cockerell invented the hovercraft in 1956.…
A. Elijah McCoy B. Jan Ernst Matzeliger C. Ernest Just D. Lewis Latimer Explanation: Matzeliger never benefited financially from his…
A. S. Tuberosum B. W. Raleigh C. E. Asselbergs D. K. Edwards Explanation: Instant mash was invented by Edward A…
A. Albert Einstein B. Michael Skube C. George Gamow D. Roger Penrose Explanation: George Gamow. Gamow, who died in 1968,…
A. Lewis Edson Waterman B. Sir William Grove C. Charles Kettering D. George Fountain Explanation: Lewis Edson Waterman patented the…
A. Robert Koch B. Edward Jenner C. Robert Hooke D. Louis Pasteur
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.