41. What device for new parents did Ann Moore invent in 1969?
a.
b.
c.
d.

Option “D” is correct.
Ann got the idea for the Snugli infant carrier from the traditional African baby carriers she observed while a volunteer for the Peace Corps in Africa.
42. In which decade was the transistor invented?
a. 1940s
b. 1950s
c. 1960s
d. 1980s

Option “A” is correct.
On December 23, 1947, William Shockley, Walter Brattain and John Bardeen, of Bell Labs, announced their discovery of the point-contact germanium transistor to management.
43. What invention was first installed at a Hartford, Connecticut bank in 1889?
a.
b.
c. Burglar alarm
d.

Option “D” is correct.
William Gray, inventor of the pay telephone, also invented the inflatable chest protector worn by baseball umpires and catchers.
44. Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?
a.
b. Motorboat
c.
d.

Option “C” is correct.
Ralph Samuelson was only 18 when he invented water skis.
45. Who invented Bifocal Lens?
a.
b.
c.
d.

Option “C” is correct.
Benjamin Franklin invented bifocal lens.
46.
In which decade was the spice simulator introduced?
a. 1950s
b. 1960s
c.
d. 1980s

Option “C” is correct.
SPICE (Simulation Program with Integrated Circuit Emphasis) was introduced in May 1972 by the University of Berkeley, California.
47. Who invented the first controllable flying AEROPLANE (AIRPLANE)?
a.
b.
c.
d.

Option “A” is correct.
Wilbur and Orville Wright made the first successful controlled powered flight at Kitty Hawk, North Carolina, in December 1903. The twelve second flight covered a distance of 120 feet and an altitude of just ten feet.
48. What groovy item was invented by Englishman Edward Craven Walker in 1963?
a.
b.
c.
d.

Option “B” is correct.
Groovy, baby! Lava lamps, which were a fixture in every hip pad in the 1960s and 70s, featured a mixture of water and colored oil that created swirl patterns when heated by a light bulb.
49. In which decade was the Internet first implemented?
a. 1940s
b. 1950s
c. 1960s
d. 1980s

Option “C” is correct.
The first message ever sent over what is now called the Internet took place at 10:30 PM on October 29, 1969. Back then, the Department of Defense called it ARPA net (Advanced Research Projects Agency network).
50. For over 500 years, paper was only available and sold as single sheets. In 1902, an inventive Australian used half size sheets of paper, a bit of glue and cardboard to create the what?
a. Notepad
b. Calendar
c.
d.

Option “A” is correct.
Birchall’s of Launceston in Tasmania started selling the world’s first notepads, calling them ‘Silvercity Writing Tablets’ after J A Birchall thought it would be a good idea to back sheets of paper with cardboard and glue them together at the top. His British paper suppliers weren’t so keen, but, they were persuaded by Birchall that it was a good idea!
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