Adultspan Journal is the journal of the Association for Adult Development and Aging (AADA), a division of the American Counseling Association.
Advanced Biosystems extends the Advanced brand into the life sciences by publishing the best research into technologies that enhance and harness biological systems, including systems and synthetic biology, advanced therapeutics, and biohybrids and neurotechnology.
ISSN: 2366-7478 (online).
Volume 2. 12 Issues in 2018.
© Nicolas Brodu. 2003 The astrolabe is an ancient astronomical computer for solving problemsrelating to time and the position of the sun and stars in the sky.Historians credit the invention of the astrolabe to classical Greece.Brass astrolabes were highly developed in the Islamic world of the 8thcentury and later. chiefly as an aid to navigation and as a way offinding the direction of Mecca. In the Middle Ages it found its wayback to Europe and became the chief navigational instrument until theinvention of the sextant in the 18th century.