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.
Famous inventionsNobel Prize winnersScientific conceptsKey inventors
Inventors and Scientific Discoveries Questions
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First legal death by lethal Injection
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He became the first Nobel Prize awardee
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He was born
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None of the Above
A
Correct answer
Explanation
Charles Brooks was the first person executed by lethal injection in the United States in 1982 in Texas. This marked a significant shift in execution methods as states sought more 'humane' alternatives to the electric chair and gas chamber. The event was widely covered as a milestone in capital punishment history. He was not a Nobel laureate nor was this related to birth.
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Otto Hahn
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Charles Babbage
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Karl Marx
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Robert Owen
B
Correct answer
Explanation
Charles Babbage is the father of the modern computer for designing the first mechanical computers in the 1800s. His Difference Engine and Analytical Engine introduced concepts like programmability, storage, and conditional branching that presaged modern computing.
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thomas edison
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grahambell
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benjamin franklin
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samuel morse
A
Correct answer
Explanation
Thomas Edison invented the phonograph in 1877, which was the first device capable of recording and reproducing sound. Alexander Graham Bell is associated with the telephone, Benjamin Franklin with electricity experiments, and Samuel Morse with the telegraph.
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Painter
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Creator of Silly Putty
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Inventor of the steam locomotive
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Astronomer
D
Correct answer
Explanation
Edwin Hubble was an American astronomer who played a crucial role in establishing the field of extragalactic astronomy. He is famous for Hubble's Law and the Hubble Space Telescope was named after him. He was not a painter, the creator of Silly Putty, or the inventor of the steam locomotive. The correct answer identifies him as an astronomer.
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Entrepreneur
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Author; wrote "I, Robot"
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Nazi Commander
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Original creator of the Koosh Ball
C
Correct answer
Explanation
Erwin Rommel was a German field marshal during World War II, known as the 'Desert Fox' for his North Africa campaigns. While a highly skilled military commander, he served the Nazi regime, making 'Nazi Commander' the most accurate characterization among the options. The other options are unrelated to Rommel's historical role.
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Thomas Edison
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Shiv Khera
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Albert Einstein
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Lee Iacocca
C
Correct answer
Explanation
Albert Einstein made this famous quote about relativity and subjective time perception. It humorously illustrates his theory that time is relative to the observer's experience - psychological state affects time perception.
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Rhomboctahedron
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Calculator
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Helicopter
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Musical Instruments
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All the above
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Pencilin
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X-ray
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Streptomycin
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Telephone
A
Correct answer
Explanation
Alexander Fleming discovered penicillin in 1928, which revolutionized medicine and led to the development of antibiotics. This discovery earned him the Nobel Prize and has saved countless lives worldwide.
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Oscar
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Wilson
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Waterman
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Lazlo Biro
D
Correct answer
Explanation
Laszlo Biro, a Hungarian journalist, invented the modern ballpoint pen in the 1930s. His design used a tiny ball in the pen tip that rolled to distribute ink. The 'Biro' pen is named after him and became commercially successful in the 1940s. Lewis Waterman invented the fountain pen.
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Eric E Wieschaus
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Ian Wilmut
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James Watson
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Franscis Crick
B
Correct answer
Explanation
Ian Wilmut and his team at the Roslin Institute in Scotland created Dolly in 1996, making her the first mammal cloned from an adult somatic cell using nuclear transfer technology.
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Astro Nicholas
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Guglielmo Marconi
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Radiogre Hams
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Steve Tuckle
B
Correct answer
Explanation
Guglielmo Marconi is credited with inventing the radio and won the 1909 Nobel Prize in Physics for his work in wireless telegraphy. The other names listed are not associated with radio invention.
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Steve Jobs
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Sunil Mittal
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Dr. Martin Cooper
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Eric Schmidt
C
Correct answer
Explanation
Dr. Martin Cooper invented the first handheld mobile phone while working at Motorola in 1973. He made the first public call on a prototype mobile device in New York City. Steve Jobs, Sunil Mittal, and Eric Schmidt are associated with mobile technology but did not invent the mobile phone.
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Bill Gates
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Konrad Zuse
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Grace Hopper
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Charles Babbage
D
Correct answer
Explanation
Charles Babbage is credited with conceptualizing and designing the first automatic computing engine - the Analytical Engine in the 1830s. He is often called the 'father of the computer.' Konrad Zuse built the first programmable computer in 1941, but Babbage's earlier work laid the theoretical foundation.
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Vikram Sarabhai
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Heron
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Aryabhatta
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Alexander Graham Bell
C
Correct answer
Explanation
Aryabhatta, the ancient Indian mathematician and astronomer (476-550 CE), is credited with the concept of zero as a number. Zero as a placeholder existed earlier in Babylonian mathematics, but Aryabhatta formalized it as a mathematical concept. Alexander Graham Bell invented the telephone, not zero.
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Gregor Mendel
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Theodor Schwann
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Charles Darwin
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Thomas Morgan
C
Correct answer
Explanation
Charles Darwin developed the modern theory of evolution through natural selection, published in 'On the Origin of Species' (1859). Gregor Mendel worked on genetics, Theodor Schwann on cell theory, and Thomas Morgan on chromosomes.