Who discovered the primary mathematical law detailing electric current branching paths, known as the junction rule? MCQ with Answer and Explanation
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Question #1
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The invention of the first practical automatic electronic computational tracking engine, the Colossus, was engineered by whom?
Correct Answer: Option B
Explanation:
Tommy Flowers designed the thermionic valve-based Colossus computer for British codebreakers at Bletchley Park to crack German Lorenz ciphers.
Tommy Flowers designed the thermionic valve-based Colossus computer for British codebreakers at Bletchley Park to crack German Lorenz ciphers.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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Who is credited with inventing the modern ballpoint pen in 1938?
Correct Answer: Option A
Explanation:
Hungarian journalist László Bíró invented the first commercially successful ballpoint pen, which bears his name ('Biro') in many countries.
Hungarian journalist László Bíró invented the first commercially successful ballpoint pen, which bears his name ('Biro') in many countries.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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The discovery of the restriction enzymes, which slice DNA at specific sequences, revolutionized genetic engineering under which scientist?
Correct Answer: Option B
Explanation:
These three scientists received the 1978 Nobel Prize for discovering restriction endonucleases and applying them to molecular genetics.
These three scientists received the 1978 Nobel Prize for discovering restriction endonucleases and applying them to molecular genetics.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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