General Awareness ยท 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 general knowledge science & technology
  1. Measurement Error

  2. Continuous Measurements

  3. Noise

  4. Iteration

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Noise became the indispensable component in system theory to account for behaviors that linear deterministic theories and measurement errors couldn't explain before 1900. Noise represents random fluctuations and uncertainties inherent in real-world systems, making it fundamental to complete systemic studies.

Multiple choice general knowledge
  1. Einstein

  2. Newton

  3. Galileo

  4. Faraday

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Galileo Galilei invented an early form of thermometer called the thermoscope in the early 1600s. Einstein and Faraday lived centuries later, and while Newton was a contemporary, he did not invent the thermometer. The year 1607 is close to the actual timeline of Galileo's work.

Multiple choice general knowledge science & technology
  1. Max Theodor Felix von Laue

  2. Alexander Fleming

  3. Thomas Midgley Jr.

  4. Frederick Soddy

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Alexander Fleming, the Scottish bacteriologist, discovered lysozyme in 1922 and famously observed the penicillin mold in 1928, revolutionizing antibiotic medicine.

Multiple choice general knowledge science & technology
  1. Heisenburg

  2. Vincent du Vigneaud

  3. Linus Carl Pauling

  4. Carl David Anderson

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Linus Carl Pauling revolutionized chemistry by applying quantum mechanics and diffraction techniques, leading to groundbreaking work on molecular structure and enzyme mechanisms.

Multiple choice general knowledge
  1. Amartya Sen

  2. Ronald Ross

  3. Sir Chandrasekhara Venkata Raman

  4. Pierre Curie

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ronald Ross was born in Almora, India in 1857 and was awarded the 1902 Nobel Prize in Physiology or Medicine for discovering the malaria parasite life cycle in mosquitoes. This was a groundbreaking discovery that proved malaria was transmitted by mosquitoes, revolutionizing understanding of the disease and its prevention.

Multiple choice general knowledge
  1. Jagadish Chandra Bose

  2. Venkataraman Ramakrishnan

  3. Sir Chandrasekhara Venkata Raman

  4. Hargobind Khorana

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sir C.V. Raman discovered the Raman effect in 1928, which explains how light scatters when passing through transparent materials. He was knighted in 1929 and received the Nobel Prize in Physics in 1930 for this groundbreaking work on light scattering.

Multiple choice general knowledge
  1. Ramanujam

  2. Winston Churchill

  3. Albert Einstein

  4. Franklin Roosevelt

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Albert Einstein never learned to drive. Despite his brilliance in theoretical physics, he relied on others for transportation throughout his life and never obtained a driver's license.

Multiple choice general knowledge science & technology
  1. Anders Hejlsberg

  2. Dennis Ritchie

  3. Bjarne Stroustrup

  4. Grace Hopper

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bjarne Stroustrup created C++ as an extension of the C programming language at Bell Labs in 1979. Dennis Ritchie created C. Anders Hejlsberg created Turbo Pascal, Delphi, C#, and TypeScript. Grace Hopper pioneered early programming languages like FLOW-MATIC and COBOL.

Multiple choice general knowledge science & technology
  1. Waterman

  2. Oscar

  3. Wilson

  4. Lazlo Biro

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lazlo Biro, a Hungarian journalist, invented the modern ballpoint pen in the 1930s. His design used a tiny ball bearing that rotated to pick up ink and deposit it on paper. The invention revolutionized writing instruments and became commercially successful worldwide.

Multiple choice general knowledge science & technology
  1. Darwin

  2. Lammarck

  3. Oparin

  4. Haechel

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Alexander Oparin, a Soviet biochemist, proposed the theory of chemical evolution in his 1924 book 'The Origin of Life.' His hypothesis suggested that life arose through gradual chemical evolution of organic molecules in Earth's early atmosphere. This differed from Darwin's biological evolution theory.

Multiple choice general knowledge science & technology
  1. Pencillin

  2. X-ray

  3. Streptomycin

  4. Telephone

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Alexander Fleming discovered penicillin in 1928 at St. Mary's Hospital in London when he noticed that mold (Penicillium notatum) had contaminated a bacterial culture plate and killed the bacteria. This accidental discovery revolutionized medicine and earned Fleming the Nobel Prize. X-ray was discovered by Roentgen, while streptomycin was discovered by Waksman, and the telephone by Graham Bell.

Multiple choice general knowledge science & technology
  1. James Arkwight

  2. James Watt

  3. William Caxton

  4. Isaac Newton

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

William Caxton introduced the printing press to England in 1476 after learning the technique in Cologne. He set up his press at Westminster and was the first English printer, producing books like 'Canterbury Tales'. James Arkwright (correct spelling: Arkwright) was involved in textile machinery, James Watt in steam engines, and Isaac Newton in physics.