GK - Inventions and Discoveries
16.
Cholera Bacillus was discovered by
Answer
As one a founder of the science of bacteriology, Robert Koch enjoyed worldwide fame, including acknowledgement of his discovery in 1882 of the tubercle bacillus that caused tuberculosis and in 1884 the cholera bacillus, Vibrio cholerae. For his many scientific achievements in 1905 he received the Nobel Prize for Physiology or Medicine.
Answer :
Option DExplanation :
As one a founder of the science of bacteriology, Robert Koch enjoyed worldwide fame, including acknowledgement of his discovery in 1882 of the tubercle bacillus that caused tuberculosis and in 1884 the cholera bacillus, Vibrio cholerae. For his many scientific achievements in 1905 he received the Nobel Prize for Physiology or Medicine.
17.
Who is the inventor of the Web?
Answer
English scientist Tim Berners-Lee invented the World Wide Web in 1989.
Answer :
Option DExplanation :
English scientist Tim Berners-Lee invented the World Wide Web in 1989.
18.
Who invented coffee filter?
Answer
On July 8, 1908, the first paper coffee filter was invented by German housewife Melitta Bentz.
Answer :
Option DExplanation :
On July 8, 1908, the first paper coffee filter was invented by German housewife Melitta Bentz.
19.
Pneumatic tyre was originally invented by
Answer
Robert William Thomson, from Stonehaven, Scotland, was original inventor of the pneumatic tyre.
John Boyd Dunlop re-invented pneumatic tyres for his child's tricycle and developed them for use in cycle racing, unknown to Dunlop, Robert William Thomson from Stonehaven, had patented a pneumatic tyre in 1847.
Answer :
Option BExplanation :
Robert William Thomson, from Stonehaven, Scotland, was original inventor of the pneumatic tyre.
John Boyd Dunlop re-invented pneumatic tyres for his child's tricycle and developed them for use in cycle racing, unknown to Dunlop, Robert William Thomson from Stonehaven, had patented a pneumatic tyre in 1847.
20.
D.D.T. was discovered by
Answer
Dichlorodiphenyltrichloroethane, commonly known as DDT was discovered by the Swiss chemist Paul Hermann Müller in 1939. DDT was used in the second half of World War II to control malaria and typhus among civilians and troops. Müller was awarded the Nobel Prize in Physiology or Medicine in 1948 "for his discovery of the high efficiency of DDT as a contact poison against several arthropods". It was first synthesized in the year 1874.
Answer :
Option AExplanation :
Dichlorodiphenyltrichloroethane, commonly known as DDT was discovered by the Swiss chemist Paul Hermann Müller in 1939. DDT was used in the second half of World War II to control malaria and typhus among civilians and troops. Müller was awarded the Nobel Prize in Physiology or Medicine in 1948 "for his discovery of the high efficiency of DDT as a contact poison against several arthropods". It was first synthesized in the year 1874.
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