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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Stephen Hawkings
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Roland Stiffling
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Mark Benedict
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John Shepherd-Barron
D
Correct answer
Explanation
John Shepherd-Barron, a Scottish inventor, developed the first automated teller machine (ATM) in the 1960s. His invention was inspired by a machine dispensing chocolate bars, and he conceived the idea of a 24-hour self-service banking machine. The first ATM was installed in London in 1967.
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James Gosling
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Michael George
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Bill Gates
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Markin Java
A
Correct answer
Explanation
James Gosling, a Canadian computer scientist, created the Java programming language at Sun Microsystems in the early 1990s. Java was designed to be a simple, object-oriented language that could run on any platform through its 'write once, run anywhere' philosophy using the Java Virtual Machine (JVM).
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Robert Steams
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George Stephenson
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James Stevenson
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Rudd Kitling
B
Correct answer
Explanation
George Stephenson, known as the 'Father of Railways', built the first practical steam locomotive for the Stockton and Darlington Railway in 1825. His design innovations, including the steam blast pipe, made steam locomotives efficient enough for practical railway transportation and revolutionized travel and commerce.
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Ruther Celcius
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Thomas Edison
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Albert Einstein
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Gabriel Fahrenheit
D
Correct answer
Explanation
Gabriel Fahrenheit, a Polish-German physicist, invented the mercury thermometer in 1714 and developed the Fahrenheit temperature scale. His thermometer used mercury as the measuring liquid, which provided more accurate and consistent readings than alcohol-based thermometers used previously.
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Albert Einsten
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Sir Isaac Newton
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Thomas Calculus
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Ramanujan
B
Correct answer
Explanation
Sir Isaac Newton independently developed calculus in the mid-1660s, calling it 'the method of fluxions.' Calculus is the mathematical study of continuous change and forms the foundation for understanding rates of change, motion, and accumulation. Newton's work was crucial for his development of classical mechanics and laws of motion.
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Marconi
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Alexander Graham Bell
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Rudolph Disel
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Thomas Elva Edison
D
Correct answer
Explanation
Thomas Alva Edison invented the first commercially practical incandescent light bulb in 1879. He developed and patented a carbon filament bulb that could last for many hours.
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Thomas Edison
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Benjamin Franklin
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Albert Einstein
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Michael Faraday
A
Correct answer
Explanation
Thomas Edison earned the 'Wizard of Menlo Park' nickname for his prolific invention work at his Menlo Park, New Jersey laboratory, where he developed the phonograph, light bulb, and many other innovations. Benjamin Franklin, Albert Einstein, and Michael Faraday were brilliant scientists but not associated with Menlo Park.
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robert hook
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louis pasteur
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edward jenner
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robert koch
C
Correct answer
Explanation
Edward Jenner developed the smallpox vaccine in 1796. He observed that milkmaids who had contracted cowpox were immune to smallpox and tested this theory by vaccinating a young boy. Louis Pasteur developed the rabies vaccine and germ theory, while Robert Hooke discovered cells and Robert Koch identified TB and cholera bacteria.
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marconi
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james watt
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thomes savery
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wright brothers
B
Correct answer
Explanation
James Watt is credited with major improvements to the steam engine in the late 18th century, making it practical for industrial use. While Thomas Savery built an early steam pump, Watt's separate condenser design revolutionized efficiency. Marconi invented wireless telegraphy and the Wright brothers pioneered flight.
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waterman
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shockley
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pascal
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sholes
D
Correct answer
Explanation
Christopher Sholes invented the first practical typewriter in the 1860s and patented it in 1868. His design included the QWERTY keyboard layout, which was specifically designed to prevent jamming by separating commonly used letter pairs. This layout became the industry standard and is still used today.
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biro brothers
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oscar
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waterman
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wilson
A
Correct answer
Explanation
Laszlo Biro and his brother Gyorgy invented the modern ballpoint pen in the 1930s. The key innovation was a tiny ball bearing in the tip that rolled to distribute ink smoothly. This design solved the problem of ink clogging and uneven flow that plagued earlier fountain pens.
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john keats
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john logic baird
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john delton
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john f keddeny
B
Correct answer
Explanation
John Logie Baird demonstrated the first working television system in 1926. He was a Scottish engineer who developed mechanical television using the Nipkow disc system. Though electronic television later replaced his mechanical approach, Baird is rightfully credited as the inventor of television.
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s freud
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robert boyle
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roger bacon
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non of above
C
Correct answer
Explanation
Roger Bacon, a 13th-century English philosopher and scientist, is credited with inventing the magnifying glass. He wrote about the properties of lenses and their ability to magnify objects. His work laid the foundation for the development of optical instruments including spectacles and microscopes.
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fahrenheit
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edison
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galileo
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non of above
A
Correct answer
Explanation
Daniel Gabriel Fahrenheit invented the mercury thermometer in 1714. He introduced the Fahrenheit temperature scale which set water's freezing point at 32 degrees and boiling point at 212 degrees. Medical thermometers specifically designed for measuring body temperature were later adaptations of his invention.
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William Kelly
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Philippe Kahn
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Jeremy Watt
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Thomas Edison
B
Correct answer
Explanation
Philippe Kahn invented the first camera phone in 1997 by combining a digital camera with a mobile phone. William Kelly, Jeremy Watt, and Thomas Edison are not associated with this invention.