Why does Google do a barrel roll?

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Tags

1. #happens
2. #html5
3. #google
4. #browsers
5. #tumble
6. #barrel
7. #effect
8. #screen
9. #search
10. #click
11. #feeling
12. #yourself
13. #around
14. #because
15. #twice
16. #built
17. #doesn
18. #after
19. #phrase
20. #thing
21. #simply