Catalog of Inventions and Discoveries

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2 entries found

Diagram comparing the optical path of a refracting telescope's lenses with a reflecting telescope's mirror, alongside Galileo's 1610 sketches of the Moon and Jupiter's moons.
Invention Astronomy

The Telescope and the New View of the Universe

First the subject of a Dutch patent application in 1608 by spectacle maker Hans Lippershey, the telescope was quickly improved and turned into a scientific instrument by Galileo Galilei, whose 1609-1610 observations of the Moon, Jupiter, and the Milky Way reshaped astronomy and supported the Sun-centered model of the solar system.

1608
Illustrated cross-section of Earth showing satellites in low Earth, medium Earth, and geostationary orbits, with labeled paths for communication, navigation, and weather satellites, alongside a historical timeline beginning with Sputnik in 1957.
Invention Astronomy

Artificial Satellites and Space-Based Technology

In 1957, the Soviet satellite Sputnik 1 opened the Space Age, triggering a Cold War race that rapidly produced satellites for communication, weather observation, and navigation. Built on decades of rocketry and orbital theory, artificial satellites now underpin global communications, GPS, weather forecasting, and scientific research, reshaping modern life from orbit.

1957