![](https://coimages.sciencemuseumgroup.org.uk/60/629/large_thumbnail_e2013_557_1__0003_.jpg)
Atomic clock prototype for 'Galileo' satellite, 2002
2002
2002
2000-100 BCE
2000
2000
2001
2000-2002
2000-2002
2000-100
2000-2002
2000-2002
2000-2002
2000-2002
2000-2002
2001
circa 2000
circa 2003
2000-2002
2001
2000
2000-2002
2000-2002
2000
circa 2000
2001
2000-2002
2000-2002
2000-2002
2000-2002
2000-2002
2000-2002
circa 2000
circa 2003
circa 2003
2000-2002
2000-2002
2000-2002
2000-2002
2000-2002
2000-2002
circa 2000
2000-2002
2000-2002
2001
4000-2001 BCE
2000-500
2000
2000
2000
2000
1959 (designed); 2001(made)