Catalog of Inventions and Discoveries

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4 entries found

Diagram of a mariner's compass needle aligning with Earth's magnetic field lines, with an inset map tracing the compass's historical spread from China through the Islamic world to Europe.
Invention Transportation

The Magnetic Compass and the Transformation of Navigation

The magnetic compass evolved gradually from Chinese lodestone devices used in divination into a practical navigation tool documented by the 11th and 12th centuries CE. Spreading through the Islamic world to Europe, it allowed sailors to hold a steady heading far from land, reshaping maritime trade and exploration.

c. 11th–12th century CE
Diagram of the four-stroke internal combustion cycle, showing a piston moving through intake, compression, power, and exhaust stages inside a labeled cylinder.
Invention Transportation

The Internal Combustion Engine

The internal combustion engine developed through a series of independent breakthroughs between the 1860s and 1880s, beginning with Étienne Lenoir's 1860 gas engine and culminating in Nikolaus Otto's four-stroke cycle and Karl Benz's 1886 patented automobile, which together established gasoline power as a practical alternative to steam.

1860s–1880s
Diagram of the Wright Flyer showing the four forces of flight—lift, weight, thrust, and drag—along with labeled controls for wing warping, rudder, and elevator.
Invention Transportation

The Airplane and the Development of Controlled Flight

Controlled, powered, heavier-than-air flight was achieved on December 17, 1903, when Wilbur and Orville Wright flew their Wright Flyer at Kitty Hawk, North Carolina. Their success rested on decades of earlier work by aeronautical pioneers such as George Cayley and Otto Lilienthal, combined with the Wrights' own innovation of active three-axis flight control.

1903
Diagram of Earth encircled by a constellation of GPS satellites in medium orbit, with dashed lines showing signals from four satellites converging on a ground receiver to calculate position through trilateration.
Invention Transportation

GPS and Satellite Navigation

Developed by the U.S. Department of Defense beginning in the 1970s, GPS combined satellite engineering, atomic timekeeping, and orbital mechanics into a global positioning system declared fully operational in 1995. Intentionally degraded civilian accuracy was lifted in 2000, transforming GPS from a military tool into an invisible backbone of modern navigation, timing, and everyday technology.

1970s–1995