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1. Poynting–Robertson effectThe Poynting–Robertson effect, also known as Poynting–Robertson drag, named after John Henry Poynting and Howard Percy Robertson, is a process by which solar radiation causes a dust grain in the Solar System to slowly spiral into the sun. The drag is essentially a component of radiation pressure tangential to the grain's motion. Poynting gave a description of the effect in 1903 based on the "luminiferous aether" theory, which was superseded by the theories of relativity in 1905–1915.
Read “Poynting–Robertson effect” on English Wikipedia
Read “ポインティング・ロバートソン効果” on Japanese Wikipedia
Read “Poynting–Robertson effect” on DBpedia

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