Science & Technology·Key Discoveries
Relativity — Key Discoveries
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Version 1Updated 9 Mar 2026
Key Discoveries
Michelson-Morley Experiment
1887This experiment, conducted by Albert Michelson and Edward Morley, aimed to detect the 'luminiferous aether,' a hypothetical medium thought to carry light waves. Using an…
Eddington's Solar Eclipse Experiment
1919Arthur Eddington led expeditions to observe a total solar eclipse, specifically to measure the deflection of starlight as it passed near the Sun. General Relativity predicted that…
Global Positioning System (GPS) Validation
Ongoing since 1970s, operational in 1990sThe Global Positioning System (GPS) provides a continuous, real-world, everyday validation of both Special and General Relativity. GPS satellites orbit Earth at high speeds…