Key Concepts & Self-Assessment15 Key Facts
Review key Landmark Scientific Inventions & Discoveries That Shaped History exam facts and rate your mastery to track revision.
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#1
J.J. Thomson discovered the electron (1897), Rutherford identified the proton (1911), and James Chadwick discovered the neutron (1932).
#2
Wilhelm Rontgen discovered X-rays in 1895, receiving the inaugural Nobel Prize in Physics in 1901 for this breakthrough.
#3
Marie Curie is the sole scientist awarded Nobel Prizes in two distinct scientific disciplines: Physics (1903) and Chemistry (1911).
#4
Alexander Fleming discovered penicillin in 1928, marking the inception of modern antibiotic therapeutics against bacterial infections.
#5
Alexander Graham Bell received the foundational patent for the electric telephone in 1876, establishing long-distance acoustic communication.
#6
Thomas Alva Edison patented the commercial incandescent electric lamp in 1879, utilizing a carbonized bamboo filament operating in a high-vacuum glass bulb.
#7
Guglielmo Marconi was awarded the 1909 Nobel Prize in Physics for developing practical wireless telegraphy, transmitting the first transatlantic radio signals in December 1901.
#8
James Watson and Francis Crick determined the double-helix molecular structure of DNA in 1953, utilizing X-ray diffraction images produced by Rosalind Franklin and Maurice Wilkins.
#9
Albert Einstein formulated the Special Theory of Relativity in 1905, establishing mass-energy equivalence (E=mc^2), and was awarded the 1921 Nobel Prize in Physics for explaining the photoelectric effect.
#10
The Wright brothers, Orville and Wilbur Wright, achieved the first controlled, sustained, powered heavier-than-air flight at Kitty Hawk, North Carolina, on December 17, 1903.
#11
Johannes Gutenberg introduced movable metal type printing to Europe around 1440 in Mainz, Germany, printing the Gutenberg Bible in 1455.
#12
Charles Darwin published 'On the Origin of Species' on November 24, 1859, formulating the theory of biological evolution through natural selection.
#13
Louis Pasteur established the germ theory of disease, developed the food preservation technique of pasteurization in 1864, and formulated the first successful rabies vaccine in 1885.
#14
Tim Berners-Lee invented the World Wide Web in 1989 at CERN, developing the Hypertext Transfer Protocol (HTTP), HTML, and the first web browser (WorldWideWeb).
#15
The transistor was invented at Bell Labs in December 1947 by John Bardeen, Walter Brattain, and William Shockley, earning them the 1956 Nobel Prize in Physics.
Subject Specialist Commentary
Analytical perspective & practical exam advice from the Master10 academic board
Landmark scientific discoveries have transformed human civilization by uncovering natural laws and powering technological progress. Transformative breakthroughs range from Johannes Gutenberg's movable metal type press in the fifteenth century to the 1947 invention of the transistor at Bell Labs. In medicine and physics, historic discoveries include Wilhelm Rontgen identifying X-rays in 1895, Alexander Fleming isolating penicillin in 1928, and Watson and Crick determining the double-helix structure of DNA in 1953 from Rosalind Franklin's diffraction images.
In SSC CGL, Railways, and State PSC exams, static GK questions frequently test inventors, discovery dates, and Nobel honors. A classic exam trap involves Albert Einstein: remember that he won the 1921 Nobel Prize in Physics for explaining the photoelectric effect, not for relativity. Also note that Marie Curie was the only individual honored with Nobel Prizes in two separate sciences, Physics and Chemistry. For atomic physics revision, remember that Thomson discovered the electron, Rutherford discovered the proton, and Chadwick discovered the neutron.
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