Edited by Peter N Dudley, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Georgia Coleman, some rights reserved (CC BY-NC), uploaded by Georgia Coleman
- 2. (c) John Barkla, some rights reserved (CC BY), uploaded by John Barkla
- 3. (c) Gravitywave, some rights reserved (CC BY-NC-SA)
- 4. (c) David Hofmann, some rights reserved (CC BY-NC-ND)
- 5. (c) Ken-ichi Ueda, some rights reserved (CC BY-NC-SA)
- 6. (c) Franco Folini, some rights reserved (CC BY-SA)
- 7. (c) M.E. Sanseverino, some rights reserved (CC BY-NC-ND)
- 8. (c) Jill Matsuyama, some rights reserved (CC BY-NC-SA)
- 9. (c) randomtruth, some rights reserved (CC BY-NC-SA)
- 10. (c) Jerry Kirkhart, some rights reserved (CC BY-NC)
- 11. (c) Steve Guttman, some rights reserved (CC BY-NC-ND)
- 12. (c) Todd Ramsden, some rights reserved (CC BY-NC), uploaded by Todd Ramsden
- 13. (c) John Haslam, some rights reserved (CC BY)
- 14. (c) Doug Greenberg, some rights reserved (CC BY-NC-ND)
- 15. (c) Ken-ichi Ueda, some rights reserved (CC BY)
- 16. (c) Richard Droker, some rights reserved (CC BY-NC-ND)
- 17. (c) Sheldrake1, some rights reserved (CC BY-NC-SA)
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- 19. (c) Yasuo Kida, some rights reserved (CC BY)
- 20. (c) Dan and Raymond, some rights reserved (CC BY-NC-SA)
- 21. (c) Joshua, some rights reserved (CC BY-NC-SA)
- 22. (c) Ray Martínez Jiménez, some rights reserved (CC BY-NC), uploaded by Ray Martínez Jiménez
- 23. (c) James Gaither, some rights reserved (CC BY-NC-ND)
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- 25. (c) Bill Bouton, some rights reserved (CC BY-NC)
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