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Who invented the first modern computer?

  • (A) Alan Turing
  • (B) Charles Babbage
  • (C) John von Neumann
  • (D) Bill Gates

Answer: Charles Babbage

Charles Babbage is credited with inventing the first mechanical computer, laying the foundation for modern computing.

Who is known for the discovery of the atomic nucleus?

  • (A) Niels Bohr
  • (B) Ernest Rutherford
  • (C) J.J. Thomson
  • (D) Albert Einstein

Answer: Ernest Rutherford

Ernest Rutherford discovered the atomic nucleus, proving that atoms are made up of a small, dense center.

Who invented the first electric motor?

  • (A) Nikola Tesla
  • (B) Michael Faraday
  • (C) Thomas Edison
  • (D) Benjamin Franklin

Answer: Michael Faraday

Michael Faraday invented the first electric motor in 1821, laying the foundation for modern electromagnetism.

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Who is known for the discovery of the law of inertia?

  • (A) Albert Einstein
  • (B) Isaac Newton
  • (C) Galileo Galilei
  • (D) Johannes Kepler

Answer: Isaac Newton

Isaac Newton is credited with formulating the law of inertia, part of his first law of motion.

Who discovered the element radium?

  • (A) Marie Curie
  • (B) Albert Einstein
  • (C) Ernest Rutherford
  • (D) Lise Meitner

Answer: Marie Curie

Marie Curie discovered the radioactive element radium, advancing the study of radiation and radioactivity.

Who proposed the theory of plate tectonics?

  • (A) Alfred Wegener
  • (B) Isaac Newton
  • (C) Charles Darwin
  • (D) Albert Einstein

Answer: Alfred Wegener

Alfred Wegener proposed the theory of plate tectonics, suggesting that Earths continents were once connected and have drifted apart.

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Who invented the first practical refrigerator?

  • (A) John Gorrie
  • (B) Thomas Edison
  • (C) Nikola Tesla
  • (D) James Watt

Answer: John Gorrie

John Gorrie invented the first practical refrigerator, using mechanical refrigeration to cool air for medical purposes.

Who is credited with discovering the structure of DNA?

  • (A) Gregor Mendel
  • (B) James Watson and Francis Crick
  • (C) Albert Einstein
  • (D) Charles Darwin

Answer: James Watson and Francis Crick

James Watson and Francis Crick, with the help of Rosalind Franklin?s X-ray images, discovered the double helix structure of DNA.

Who discovered the first vaccine for rabies?

  • (A) Louis Pasteur
  • (B) Edward Jenner
  • (C) Joseph Lister
  • (D) Robert Koch

Answer: Louis Pasteur

Louis Pasteur developed the first rabies vaccine in 1885, a groundbreaking achievement in immunology.

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Who is known for developing the concept of black holes?

  • (A) Niels Bohr
  • (B) Albert Einstein
  • (C) Karl Schwarzschild
  • (D) Isaac Newton

Answer: Karl Schwarzschild

Karl Schwarzschild developed the first solution to Einstein?s field equations, leading to the concept of black holes.

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