On the Line: The Story of the Greenwich Meridian

Book Overview

The Royal Observatory at Greenwich is home to both time and space: Greenwich Mean Time (GMT) and the Prime Meridian. But have you ever stopped to ask what the Prime Meridian is, and why it's in Greenwich? Why are all time zones across the world based on GMT? What is the longitude? Why is the meridian moving? A succinct history of the Meridian Line and its importance in defining international time standards, On the Line: The Story of the Greenwich...

• Format: Hardcover
• Language: English
• ISBN: 1906367612
• ISBN13: 9781906367619
• Release Date: February 2020
• Publisher: Royal Museums Greenwich
• Length: 64 Pages
• Weight: 0.40 lbs.
• Dimensions: 0.4" x 5.0" x 7.1"
• Age Range: 8 to 12 years
• Grade Range: Grades 3 to 7