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General Knowledge

Inventions and Discoveries

Static GK covering history, geography, polity, economy and science.

About Inventions and Discoveries

Inventions and discoveries is a list of pairings between a thing and the person credited with it. The pairs here are the ones that are settled; where credit is genuinely disputed, the entry has been left out rather than decided arbitrarily.

What you need to understand

  • The nineteenth century inventions form a clear group: the telegraph by Morse, the telephone by Bell, the phonograph and the practical lamp by Edison, and wireless telegraphy by Marconi.
  • The electrical pioneers are grouped together: Volta with the battery, Faraday with the first electric motor, Sturgeon with the electromagnet and Franklin with the lightning conductor.
  • The textile inventions of the industrial revolution are a group of three: the spinning jenny by Hargreaves, the power loom by Cartwright and the cotton gin by Whitney.
  • The steam age has three names: Watt improved the steam engine, Stephenson built the locomotive, and Parsons the steam turbine.
  • The transport inventions run from the bicycle age to the air: Dunlop with the pneumatic tyre, Benz with the motor car, the Wright brothers with the aeroplane, Whittle with the jet engine and Sikorsky with the helicopter.
  • The measuring and optical instruments are a group of their own: the barometer by Torricelli, the pendulum clock by Huygens, the marine chronometer by Harrison, the mercury thermometer by Fahrenheit and the compound microscope by Janssen.
  • Two men appear twice in most lists and must be kept apart: Edison with the phonograph and the lamp, and Newton, who appears with the reflecting telescope as well as with gravitation.
  • The electronic age begins with the transistor, credited to Bardeen, Brattain and Shockley, and runs through the integrated circuit by Kilby and the microprocessor by Hoff.
  • The computing inventions of the later twentieth century are Berners-Lee's World Wide Web, Engelbart's mouse and the cash machine of Shepherd-Barron.
  • The twentieth century medical and consumer inventions include Baird's television, Maiman's laser and Kapany's optical fibre for communication.
  • Where an invention was made by more than one person, the answer names the group: the aeroplane is the Wright brothers' and the transistor belongs to three names together.
  • The inventions named after their inventors are the easiest to remember: the diesel engine, the Biro pen, the Colt revolver and the Montgolfier balloon.
  • Nothing here is a recent invention, and no entry depends on a patent dispute still running. Where two people genuinely share credit, the entry says so rather than choosing one.

How to work through these questions

  1. Group the inventions by century or by field. The electrical group, the textile group, the steam group and the electronic group are four short lists.
  2. Where an invention is named after a person, the name is the answer: the diesel engine is Diesel's and the Biro pen Biro's.
  3. For the pairs where credit is shared, learn the whole group as one answer, because a question asking about the aeroplane expects the brothers together.
  4. Use the field as a first cut. A question about a weaving machine cannot be answered by an electrical pioneer.
  5. Learn the two appearances of Edison and of Newton separately, since questions distinguish them by the thing rather than by the person.
  6. For the electronic age, follow the order: transistor, then integrated circuit, then microprocessor, which places the three inventions in the right century.

Mistakes that cost marks

  • Giving Bell for the telegraph, which is Morse's, or Morse for the telephone.
  • Mixing up the phonograph with the incandescent lamp, both of which are Edison's.
  • Giving Marconi for the telephone rather than for wireless telegraphy.
  • Confusing the spinning jenny by Hargreaves with the power loom by Cartwright.
  • Attributing the steam locomotive to Watt, who improved the engine, rather than to Stephenson, who built the locomotive.
  • Giving one name for the aeroplane or the transistor when the standard answer names a pair or a group.
  • Mixing up the barometer by Torricelli with the mercury thermometer by Fahrenheit.
  • Mixing up the laser, which is Maiman's, with optical fibre, which is Kapany's.

Worked example

Who is credited with the telegraph?
  1. The telegraph is a nineteenth century electrical invention, so the answer is one of the group that includes Morse, Bell, Edison and Marconi.
  2. Bell's invention is the telephone, which came later and carried the voice rather than a code.
  3. Marconi's is wireless telegraphy, which removed the wire rather than introducing the telegraph.
  4. The telegraph, which sent coded signals along a wire, is credited to Samuel Morse.
Answer: Samuel Morse

Practice questions with answers

A few Inventions and Discoveries questions with the full solution shown, so you can see how the method is applied before you attempt the timed set.

Question 1
Who is credited with the telegraph?
  • A John Logie Baird
  • B Christopher Latham Sholes
  • C Edmund Cartwright
  • D Samuel Morse
Answer: Option D — with explanation
the telegraph is credited to Samuel Morse. Most of these belong to the nineteenth and twentieth centuries, and grouping them by century - the electrical inventions, then the motor car and the aeroplane, then the electronic ones - is easier than one long list. Where credit is disputed, the answer expected is the name the standard reference works give. Common mistakes - this person is credited with another invention: John Logie Baird - this person is credited with another invention: Christopher Latham Sholes - this person is credited with another invention: Edmund Cartwright
Question 2
the first electric motor is credited to which of these?
  • A J. Presper Eckert and John Mauchly
  • B Michael Faraday
  • C Norman Joseph Woodland
  • D John Harrison
Answer: Option B — with explanation
the first electric motor is credited to Michael Faraday. Most of these belong to the nineteenth and twentieth centuries, and grouping them by century - the electrical inventions, then the motor car and the aeroplane, then the electronic ones - is easier than one long list. Where credit is disputed, the answer expected is the name the standard reference works give. Common mistakes - this person is credited with another invention: John Harrison - this person is credited with another invention: Norman Joseph Woodland - this person is credited with another invention: J. Presper Eckert and John Mauchly
Question 3
Which of these is credited with the typewriter?
  • A Nikolaus Otto
  • B Christiaan Huygens
  • C Christopher Latham Sholes
  • D Frank Sprague
Answer: Option C — with explanation
the typewriter is credited to Christopher Latham Sholes. Most of these belong to the nineteenth and twentieth centuries, and grouping them by century - the electrical inventions, then the motor car and the aeroplane, then the electronic ones - is easier than one long list. Where credit is disputed, the answer expected is the name the standard reference works give. Common mistakes - this person is credited with another invention: Nikolaus Otto - this person is credited with another invention: Frank Sprague - this person is credited with another invention: Christiaan Huygens
Question 4
Which of these is credited with the sewing machine?
  • A Samuel Morse
  • B Elias Howe
  • C John Boyd Dunlop
  • D Charles Seeberger
Answer: Option B — with explanation
the sewing machine is credited to Elias Howe. Most of these belong to the nineteenth and twentieth centuries, and grouping them by century - the electrical inventions, then the motor car and the aeroplane, then the electronic ones - is easier than one long list. Where credit is disputed, the answer expected is the name the standard reference works give. Common mistakes - this person is credited with another invention: John Boyd Dunlop - this person is credited with another invention: Samuel Morse - this person is credited with another invention: Charles Seeberger
Question 5
the centigrade temperature scale is the work of which of these inventors?
  • A Anders Celsius
  • B George Stephenson
  • C Rudolf Diesel
  • D Charles Seeberger
Answer: Option A — with explanation
the centigrade temperature scale is credited to Anders Celsius. Most of these belong to the nineteenth and twentieth centuries, and grouping them by century - the electrical inventions, then the motor car and the aeroplane, then the electronic ones - is easier than one long list. Where credit is disputed, the answer expected is the name the standard reference works give. Common mistakes - this person is credited with another invention: George Stephenson - this person is credited with another invention: Rudolf Diesel - this person is credited with another invention: Charles Seeberger

Frequently asked questions

What about inventions whose credit is disputed?

They have been left out. The radio, for instance, is credited by turns to Marconi and to Tesla, and a question with two defensible answers is not a fair question. The wireless telegraph, which is Marconi's beyond argument, is included instead.

Should I learn the year of each invention?

No. Years of invention are often disputed or spread over several attempts, which is why this topic asks about the person and not the date.

Which inventions are asked about most?

The telephone, the telegraph, the electric lamp, the aeroplane, the transistor and the World Wide Web, along with the industrial revolution inventions.

How is this different from the general science topic?

That topic asks about scientific discoveries, such as the electron or penicillin, and this one about inventions, such as the telephone or the jet engine. Some names appear in both, and the two topics together fix them.

Where does this topic appear in a paper?

In the general knowledge and general science sections of bank, SSC and railway papers, usually as two or three questions.

Take the Inventions and Discoveries test

Two timed papers on the same syllabus — sit the foundation paper first, then the advanced one. Both use the real exam paper format with a full step-by-step review of every question once you submit.

Set 01 • Foundation Level
Inventions and Discoveries — Foundation Paper
25 Questions
30 Minutes
+2 / −0.5 Marking
Start this paper
Set 02 • Advanced Level
Inventions and Discoveries — Advanced Paper
25 Questions
30 Minutes
+2 / −0.5 Marking
Start this paper

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