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Poynting-Robertson effect

[poin-ting-rob-ert-suh n] /ˈpɔɪn tɪŋˈrɒb ərt sən/
noun, Astronomy.
the slowing down and consequent spiraling inward of small particles orbiting the sun, due to their interaction with solar radiation.
Origin of Poynting-Robertson effect
1955-60; after English physicist John H. Poynting (1852-1914) and U.S. physicist Howard P. Robertson (1903-61) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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