Inventions

81.Who developed the idea of Crop Rotation?
a.
b.
c.
d.

Option “B” is correct.
Viscount Charles ‘Turnip’ Townsend developed this revolutionary concept of crop rotation.
82.Who made corn flakes at first?
a.
b.
c.Quaker
d.Archers

Option “B” is correct.
Will Keith Kellogg discovered the corn flake, by mistake, in 1906. They were the result of an experiment which went wrong.
83.William Frederick is credited with the invention of the modern frisbee in the mid 1950’s. In 1957 the Wham-O Company bought his idea and the rest is history. They named the toy after William Frisbie who was a ________
a.
b.
c.
d.

Option “A” is correct.
William Frederick is credited with the invention of the modern frisbee in the mid 1950’s. In 1957 the Wham-O Company bought his idea and the rest is history. They named the toy after William Frisbie who was a pie maker.
84.Who came up with the idea for instant mashed potato?
a.
b.
c.
d.

Option “C” is correct.
Instant mash was invented by Edward A Asselbergs, a Canadian, in 1962. The mash is actually dehydrated potato flakes.
85.Who invented Dynamite?
a.
b.
c.
d.

Option “D” is correct.
Alfred B. Nobel invented dynamite.
86.Who invented Bicycle?
a.
b.
c.
d.

Option “D” is correct.
Kirkpatrick Macmillan invented bicycle.
87.Who synthesized the first wholly artificial gene?
a.
b.
c.
d.

Option “A” is correct.
Synthesis of the first complete gene, a yeast tRNA, was demonstrated by Har Gobind Khorana and coworkers in 1972. Synthesis of the first peptide- and protein-coding genes was performed in the laboratories of Herbert Boyer and Alexander Markham, respectively.
88.Who discovered the first practical method of freezing food?
a.
b.
c.
d.

Option “A” is correct.
In the 1920s Clarence Birdseye discovered that if food was flash-frozen under pressure, it would freeze without the formation of ice crystals.
89.When was the Raggedy Ann doll patented?
a.1915
b.
c.1919
d.1911

Option “A” is correct.
Johnny Gruelle patented the Raggedy Ann doll in 1915. The Raggedy Andy doll and the Raggedy Ann books came later.
90.What Frank Whittle invented?
a.Radar
b.
c.Sonar
d.

Option “D” is correct.
Sir Frank Whittle, (born June 1, 1907, Coventry, Warwickshire, England—died August 8, 1996, Columbia, Maryland, U.S.), English aviation engineer and pilot who invented the jet engine.
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