Edited by James McCulloch, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Eli Brager, some rights reserved (CC BY-NC-ND)
- 2. (c) Erik Jørgensen, some rights reserved (CC BY-NC-SA)
- 3. (c) Leo-Avalon, some rights reserved (CC BY-NC-ND)
- 4. (c) Sergey Yeliseev, some rights reserved (CC BY-NC-ND)
- 5. (c) Ferran Pestaña, some rights reserved (CC BY-SA)
- 6. (c) Joaquim Maceira Muchaxo, some rights reserved (CC BY-NC-ND)
- 7. (c) Jörg Hempel, some rights reserved (CC BY-SA)
- 8. (c) Biopix, some rights reserved (CC BY-NC)
- 9. (c) Mark Kilner, some rights reserved (CC BY-NC-SA)
- 10. (c) Dean Morley, some rights reserved (CC BY-ND)
- 11. (c) Agustín Povedano, some rights reserved (CC BY)
- 12. (c) Harry Harms, some rights reserved (CC BY-NC-SA)
- 13. (c) Giuss95, some rights reserved (CC BY-NC-SA)
- 14. (c) David Merrett, some rights reserved (CC BY)
- 15. (c) Kari Pihlaviita, some rights reserved (CC BY-NC)
- 16. (c) Lip Kee Yap, some rights reserved (CC BY-SA)
- 17. (c) cesare dolzani, some rights reserved (CC BY-NC-SA)
- 18. (c) Luciano Giussani, some rights reserved (CC BY-NC-SA)
- 19. (c) Stefan Jansson, some rights reserved (CC BY-NC-SA)
- 20. (c) Carron Brown, some rights reserved (CC BY-NC-ND)
- 21. (c) Peter aka anemoneprojectors, some rights reserved (CC BY-SA)