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.

Famous inventionsNobel Prize winnersScientific conceptsKey inventors

Inventors and Scientific Discoveries Questions

Multiple choice general knowledge

Who invented the Cow pox vaccine ?

  1. Albert Einstein

  2. Satyendranath Bose

  3. Edward Jenner

  4. Issac Newton
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Edward Jenner developed the cowpox vaccine in 1796, which led to the smallpox vaccine. He discovered that milkmaids infected with cowpox were immune to smallpox. Einstein, Bose, and Newton were physicists, not medical pioneers.

Multiple choice general knowledge

who invent telephone

  1. graham bell

  2. nichol

  3. mehwish khan

  4. charles darwin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Alexander Graham Bell is credited with inventing and patenting the first practical telephone in 1876. While there were other contributors like Antonio Meucci and Elisha Gray, Bell received the patent and is recognized as the primary inventor. The other options - Nichol, Mehwish Khan, and Charles Darwin - are not associated with telephone invention.

Multiple choice general knowledge

What happened to Charles Brooks in 1982 ?

  1. First legal death by lethal Injection

  2. He became the first Nobel Prize awardee

  3. He was born

  4. None of the Above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Charles Brooks became the first person in the United States to be executed by lethal injection on December 7, 1982, in Texas, marking a historic shift in execution methods.

Multiple choice general knowledge

--------- was the inventor of Liquid Paper, which is nothing but the brand name of opaque correction fluid, which is used to cover up mistakes on paper without retyping the entire sheet.

  1. Alexander Fleming

  2. Whitcomb L. Judson

  3. Bette Nesmith Graham

  4. None
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In 1956, Bette Nesmith Graham, a secretary and single mother, created Liquid Paper correction fluid to fix typing errors without redoing entire pages.

Multiple choice general knowledge

He was an English mathematician, philosopher, inventor and mechanical engineer who came up with the concept of a programmable computer and is said to have invented the first mechanical computer.

  1. None

  2. Charles Babbage

  3. Michael Faraday

  4. Bette Nesmith Graham
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Charles Babbage designed the Difference Engine (1822) and Analytical Engine (1837), mechanical computers establishing programmability, storage, and computation principles foundational to modern computing.

Multiple choice general knowledge

----------- is accredited for his invention of the English concertina, the stereoscope (which is a device for displaying three-dimensional images), and the Playfair cipher (which is an encryption technique).

  1. None

  2. Isaac Newton

  3. Charles Wheatstone

  4. Igor Sikorsky
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Charles Wheatstone is credited with inventing the English concertina in 1829, developing an early stereoscope for viewing 3D images, and creating the Playfair cipher with Lyon Playfair. Wheatstone was a prominent 19th-century English inventor and scientist who made significant contributions to telegraphy, acoustics, and optics.

Multiple choice general knowledge

--------- was a Russian-American, who invented and flew the world's first multi-engine fixed-wing aircraft. He also discovered the first of Pan American Airways ocean-conquering flying boats in the 1930s, and the first successful American helicopter too!

  1. None

  2. Whitcomb L. Judson

  3. Robert Moog

  4. Igor Sikorsky
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Igor Sikorsky was a Russian-American aviation pioneer who designed and flew the world's first multi-engine fixed-wing aircraft (the Russky Vityaz in 1913). He later developed flying boats for Pan American Airways in the 1930s and is credited with creating the first successful practical helicopter in the United States, founding Sikorsky Aircraft.

Multiple choice general knowledge

-------- was an American inventor, who invented the forerunner of the modern zipper in 1893, which was called the clasp-locker.

  1. Robert Moog

  2. Whitcomb L. Judson

  3. Alexander Fleming

  4. None
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Whitcomb L. Judson was an American inventor who developed the "clasp locker" in 1893, which was the precursor to the modern zipper. He founded the Universal Fastener Company to manufacture his invention. Though not immediately successful, his design was later improved and became the modern zipper we know today.

Multiple choice general knowledge

He discovered the enzyme lysozyme in 1922.

  1. None

  2. Eli Whitney

  3. Alexander Fleming

  4. Michael Faraday
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Alexander Fleming discovered lysozyme in 1922 while studying nasal mucus and its antibacterial properties. This discovery was an important precursor to his more famous discovery of penicillin in 1928. Lysozyme is an enzyme that breaks down bacterial cell walls and is found in tears, saliva, and other secretions.