Greenwich Time and the Discovery of the Longitude
by Derek Howse
28 Members (4.00)
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Description
The story behind the concept of longitude and how Greenwich becomes the world's timekeeper.Tags
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Common Knowledge
- Original publication date
- 1980
- Important places
- Royal Greenwich Observatory, Greenwich, London, England, UK; Greenwich, London, England, UK
- First words
- The concept of geographical latitude and longitude for defining positions on the Earth's surface had probably come into use in ancient Greece before 300 BC, but not in the way we think of today - of latitudes so many degrees ... (show all)north or south of the equator and longitudes so many degrees east or west of some chosen meridian.
- Last words
- (Click to show. Warning: May contain spoilers.)Although the world's time signals (and in some countries legal time also) are no longer based on GMT as strictly defined, nevertheless the timescale on which they are based - UTC - is bound to be within a second of the old GMT.
- Original language
- English
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Statistics
- Members
- 28
- Popularity
- 983,271
- Rating
- (4.00)
- Languages
- English
- Media
- Paper
- ISBNs
- 1
