University Linear Icons Set. Structure of Atom, Calculator. Physical Education Lessons, Astronomy Stock Vector - Illustration of knowledge, football: 223082787
Holdings: Practical astronomy with your calculator or spreadsheet
A 2,000 Year Old Greek Geared Calculator For Astronomy | Fine Art Conservation Laboratories (FACL, Inc.)
A 2,000 Year Old Greek Geared Calculator For Astronomy | Fine Art Conservation Laboratories (FACL, Inc.)
Astrolabe is an elaborate inclinometer and can be considered an analog calculator capable of working out several kinds of problems in astronomy Stock Photo - Alamy