Catalog of Inventions and Discoveries
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5 entries found
The Steam Engine and the Mechanization of Work
Developed to pump water from flooded coal mines, the steam engine evolved from Thomas Newcomen's inefficient 1712 atmospheric design into James Watt's far more efficient condensing engine of the 1770s. By converting heat into reliable mechanical motion, it freed factories from rivers and animal power and became the mechanical engine of the Industrial Revolution.
1712 (improved 1776)
The Discovery of Electromagnetism
In 1820, Hans Christian Oersted noticed an electric current deflecting a compass needle, revealing a hidden link between electricity and magnetism. Over the following decade, André-Marie Ampère and Michael Faraday turned that observation into a working science, culminating in Faraday's 1831 discovery of electromagnetic induction, the principle behind every electric generator and motor.
1820–1831
The Electric Light and the Development of Practical Lighting
Practical electric lighting developed through decades of experimentation with arc lamps and incandescent filaments. Joseph Swan in England and Thomas Edison in the United States each produced workable incandescent lamps around 1878–1879, and Edison's integrated lighting system, including power generation and distribution, brought electric light into commercial and residential use.
1870s–1880s
The Development of the Modern Solar Cell
The modern solar cell emerged from a 1954 Bell Laboratories demonstration that turned a century-old scientific curiosity, the photovoltaic effect, into a practical source of electricity. Building on work by Becquerel, Einstein, and Bell Labs researcher Russell Ohl, the silicon solar cell first powered satellites before becoming a cornerstone of today's global shift toward renewable energy.
1954
The Development of Lithium-Ion Batteries
The lithium-ion battery resulted from a sequence of discoveries spanning two decades: Whittingham's 1970s intercalation chemistry, Goodenough's 1980 cathode breakthrough, and Yoshino's 1985 safe cell design, commercialized by Sony in 1991. Together these advances made lightweight, rechargeable power practical, enabling the portable electronics and electric vehicles that define modern life.
1970s–1991