Do laser beams spread out?

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Tags

1. #mixed
2. #together
3. #randomly
4. #regular
5. #parallel
6. #quickly
7. #infinitely
8. #waves
9. #spread
10. #rather
11. #while
12. #spreads
13. #state
14. #therefore
15. #somewhat
16. #photons
17. #narrower
18. #plane
19. #laser
20. #wider
21. #light