Newton’s Principia
Newton’s Principia has received more attention from philosophers than any other scientific book. But from one century to the next, …
Inventions, Creation, Findings
Royal Postal Service
Ancient global communication relay systems It is hardly unexpected that the earliest historical allusions to postal service were made in …
Astrolabe: A navigational instrument
Introduction The mariner’s astrolabe was a navigational instrument used to determine the sun’s or stars’ height at sea. Its history …
All about Calendars’ History
The discovery of the oldest Calendar is based on a thorough examination of data from an archaeological site in northern …