مستخدم:محمد رشاد ابوالنجا/العلوم والتكنولوجيا فى أسبانيامن ويكيبيديا، الموسوعة encyclopedia Astrolabe of al-Sahlî, constructed in Toledo in 1067. Museo Arqueológico Nacional. Armillary sphere, Library of El Escorial. Marine chronometer, J. R. Losada, 1850–1860. Headquarters of the CSIC Machinery from the Rio Tinto mines. Map of Isla de San Carlos (Easter Island) compiled by the expedition of Felipe González Ahedo (1772). Museo Naval de Madrid.
Astrolabe of al-Sahlî, constructed in Toledo in 1067. Museo Arqueológico Nacional. Armillary sphere, Library of El Escorial. Marine chronometer, J. R. Losada, 1850–1860. Headquarters of the CSIC Machinery from the Rio Tinto mines. Map of Isla de San Carlos (Easter Island) compiled by the expedition of Felipe González Ahedo (1772). Museo Naval de Madrid.