- rapid-reader sextant
- секстан с делениями на микрометренном устройстве (для быстроты отсчетов)
Англо-русский морской словарь. Б.Н. Серебрийский. 1946.
Англо-русский морской словарь. Б.Н. Серебрийский. 1946.
Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances … Wikipedia
PHYSICS — The material presented in this entry emphasizes those contributions which were important in arriving at verified present day scientific results, rather than those that may have appeared important at the time. Unavoidably it will overlap in parts… … Encyclopedia of Judaism