Tech & Science · 1917
Innovations Forged Under the Shadow of War
As the First World War rages across Europe, scientific breakthroughs and industrial innovations are propelled by military urgency and cosmic curiosity alike. From groundbreaking physics and deep-space observation to revolutionizing medicine and synthetic materials, 1917 transforms human technology forever.
- February 1917 | Theoretical Physics
Einstein Introduces the Cosmological Constant
Albert Einstein publishes a paper applying General Relativity to the universe as a whole, introducing the cosmological constant to maintain a static model of the cosmos.
- November 1, 1917 | Astronomy | USA
100-Inch Hooker Telescope First Light
The world's largest optical telescope sees first light atop Mount Wilson, California, paving the way for future discoveries about the expansion of the universe.
- September 3, 1917 | Microbiology
Félix d'Hérelle Discovers Bacteriophages
Microbiologist Félix d'Hérelle announces the discovery of viruses that target and destroy bacteria, coining the term bacteriophage and opening new doors in medicine.
- 1917 | Maritime Engineering | France
Paul Langevin Invents Active Sonar
Physicist Paul Langevin develops the first functional active sonar system using quartz transducers, sending ultrasonic waves through water to detect submerged submarines.
- September 13, 1917 | Film Technology
Technicolor Debuts Two-Color Prism System
Technicolor Motion Picture Corp premieres 'The Gulf Between', showcasing a novel two-color additive system that represents a major leap forward for color motion pictures.
- January 28, 1917 | Aviation | Germany
Junkers J.I All-Metal Aircraft First Flight
Germany tests the Junkers J.I, the world's first mass-produced all-metal airplane designed with an armored metal hull to protect the crew during ground-attack missions.
- February 1917 | Military Engineering
Browning M1917 Heavy Machine Gun Demo
Inventor John Browning demonstrates his water-cooled heavy machine gun to US military officials, firing 20,000 continuous rounds without a single mechanical failure.
- 1917 | Consumer Goods | USA
Converse Launches the All Star Basketball Shoe
The Converse Rubber Shoe Company releases the All Star sneaker, featuring a distinct rubber sole and high-top canvas design crafted specifically for professional basketball players.
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