Time mechanism
A clock is an instrument for measuring time. First mechanical clock came from China and was built in VIII century. First watch (pocket clock) was constructed about year 1600. Today atomic clocks are the most precise clocks in the world. The first atomic clock was built in 1949 at the U.S. National Bureau of Standards.
 | Level:   Size: 12x8 Photo by: (c) Elena Bakhareva - FOTOLIA |
Hall of fame
 1. Benek - 85, 4:58 2. Rybka - 85, 9:12 3. atk - 86, 4:37 4. krycha - 86, 5:01 5. krycha - 86, 7:27 6. kriss316 - 86, 14:30 7. Trista - 87, 3:42 8. Benek - 87, 5:52 9. Benek - 87, 7:34 10. atk - 87, 13:43 11. krycha - 88, 3:53 12. krycha - 88, 4:05 13. Benek - 88, 4:34 14. ewana - 88, 4:37 15. atk - 88, 4:41 16. krycha - 88, 4:45 17. krycha - 88, 5:01 18. krycha - 88, 6:33 19. krycha - 88, 6:54 20. atk - 88, 7:32 |
