Mariner's astrolabe (1 янв 1295 г. – 1 янв 1750 г.)
Описание:
The mariner's astrolabe was an inclinometer used to determine the latitude of a ship at sea by measuring the sun's noon altitude (declination) or the meridian altitude of a star of known declination, can be found to the earliest date of 1295.Добавлено на ленту времени:
Дата:
1 янв 1295 г.
1 янв 1750 г.
~ 455 years