Сегодня родился Парийский Николай Николаевич
On September 30, 1900 Pariysky Nikolay Nikolaevich was born. He is a Soviet astronomer and a geophysicist. He was born in St. Petersburg, in 1924 he was graduated from MSU then worked in it till 1960. Since 1935 he worked at Institute of physics of Earth of Academy of Sciences of USSR. His main works about astronomy are devoted to a cosmogony, questions of rotation of Earth, a nature of a solar crown; in geophysics (studying of tidal deformations of Earth, gravitation measurements). He was one of founders of gravimetric researches in USSR. In 1943 he proved insolvency of a hypothesis of J. X. Dzhinsa about an origin of Solar system. He could get an assessment of century delay of speed of Earth's rotation.