General Awareness · Science General

Inventors and Scientific Discoveries

4,454 Questions

This hub provides questions related to great inventors and their scientific discoveries. It covers the inventors of the telephone, radio, and microchips, alongside Nobel Prize winners. These facts are crucial for the general awareness section of major competitive exams.

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Inventors and Scientific Discoveries Questions

Multiple choice

What discovery led to the development of modern chemistry?

  1. Periodic Table

  2. Atomic Theory

  3. Law of Conservation of Mass

  4. Avogadro's Number
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A Correct answer
Explanation

The periodic table, developed by Dmitri Mendeleev in the 19th century, organized the known elements based on their properties and atomic weights, providing a framework for understanding chemical reactions.

Multiple choice

What discovery led to the development of modern genetics?

  1. Mendel's Laws of Inheritance

  2. DNA Structure

  3. Genetic Code

  4. Gene Editing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mendel's laws of inheritance, discovered by Gregor Mendel in the 19th century, laid the foundation for modern genetics.

Multiple choice

Who coined the term "technological determinism"?

  1. Thomas Edison

  2. Karl Marx

  3. Jacques Ellul

  4. Herbert Marcuse
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Jacques Ellul, a French philosopher and sociologist, coined the term "technological determinism" in his book "The Technological Society" (1954).

Multiple choice

Who predicted the existence of gravitational waves?

  1. Albert Einstein

  2. Isaac Newton

  3. James Clerk Maxwell

  4. Michael Faraday
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A Correct answer
Explanation

Albert Einstein predicted the existence of gravitational waves in 1915 as a consequence of his theory of general relativity.

Multiple choice

Which of the following is a major contribution of the New Philosophy of Science?

  1. The development of the scientific method

  2. The discovery of the laws of motion

  3. The development of calculus

  4. The discovery of the circulation of blood
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Correct answer
Explanation

All of the above are major contributions of the New Philosophy of Science.

Multiple choice

Which mathematician proved that Hex is NP-complete?

  1. Richard Karp

  2. John Nash

  3. Claude Shannon

  4. Alan Turing
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A Correct answer
Explanation

Richard Karp proved that Hex is NP-complete in 1979, showing that it is one of the hardest problems in computer science to solve.

Multiple choice

Who is credited with developing the first vaccine?

  1. Edward Jenner

  2. Louis Pasteur

  3. Robert Koch

  4. Alexander Fleming
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A Correct answer
Explanation

Edward Jenner, an English physician, is credited with developing the first vaccine in 1796. He used cowpox to immunize against smallpox.

Multiple choice

Which scientist developed the polio vaccine?

  1. Jonas Salk

  2. Albert Sabin

  3. Maurice Hilleman

  4. Samuel Plotkin
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A Correct answer
Explanation

Jonas Salk, an American virologist, developed the first polio vaccine in 1955. His vaccine was an inactivated poliovirus vaccine, which was administered by injection.

Multiple choice

Who is widely credited with inventing holography?

  1. Dennis Gabor

  2. Yuri Denisyuk

  3. Emmett Leith

  4. Juris Upatnieks
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dennis Gabor, a Hungarian-British physicist, is recognized as the inventor of holography.

Multiple choice

Who wrote the novel (Cryptonomicon), which delves into the history of cryptography and its role in shaping the modern world?

  1. Neal Stephenson

  2. William Gibson

  3. Bruce Sterling

  4. John Shirley
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A Correct answer
Explanation

Neal Stephenson's (Cryptonomicon) is a historical novel that explores the development of cryptography and its significance in various historical events.

Multiple choice

Who introduced the concept of regional anesthesia?

  1. William Halsted

  2. Carl Koller

  3. August Bier

  4. Paul Ehrlich
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

August Bier introduced the concept of regional anesthesia in 1898, using cocaine to block nerve conduction in a specific region of the body.

Multiple choice

Who developed the first cuffed endotracheal tube?

  1. Ivan Magill

  2. Robert Macintosh

  3. Thomas Ayre

  4. Frederick Guedel
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A Correct answer
Explanation

Ivan Magill developed the first cuffed endotracheal tube in 1928, which significantly improved airway management and reduced the risk of aspiration.

Multiple choice

Who developed the laryngeal mask airway (LMA)?

  1. Archie Brain

  2. John Nunn

  3. Brian Ackroyd

  4. Peter Safar
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A Correct answer
Explanation

Archie Brain developed the laryngeal mask airway (LMA) in 1981, providing an alternative to endotracheal intubation for airway management.

Multiple choice

Who is credited with inventing the first camera?

  1. Nicéphore Niépce

  2. Louis Daguerre

  3. William Henry Fox Talbot

  4. George Eastman
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A Correct answer
Explanation

Nicéphore Niépce was a French inventor who is credited with taking the first permanent photograph in 1826.

Multiple choice

What are some of the key figures in the philosophy of proteomics?

  1. Hans-Jörg Rheinberger.

  2. Evelyn Fox Keller.

  3. Robert Cook-Deegan.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Some of the key figures in the philosophy of proteomics include Hans-Jörg Rheinberger, Evelyn Fox Keller, and Robert Cook-Deegan.