The-speed-of-light

How Astronomer Accidentally Discovers the Speed of Light 347 Years Ago

Ancient astronomers struggled to understand the concept of the speed of light. Before its discovery, some researchers thought that the speed of light was either extremely fast to measure or infinite. On Nov. 21, 1676, Ole Rømer, a Danish astronomer discovered the speed of light. Rømer accidentally discovered this while studying Jupiter’s volcanic moon, Io. […]

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