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Latest Primary Atomic Reference Clock in Space Stories

2012-02-01 23:43:34

The ability to accurately measure a second in time is at the heart of many essential technologies; the most recognizable may be the Global Positioning System (GPS).

2005-10-07 13:35:00

The average user may not notice, but the Global Positioning System (GPS) is more reliable today than it was several years ago.


Word of the Day
quilisma
  • In medieval musical notation, a sign or neume denoting a shake or trill.
The word 'quilisma' comes from a Greek word meaning 'a roll'.