Edited by Caleb Scholtens, some rights reserved (CC0)
Photo Credits
- 1. (c) Monica Krancevic, some rights reserved (CC BY-NC), uploaded by Monica Krancevic
- 2. (c) Matthew O'Donnell, some rights reserved (CC BY-NC-SA), uploaded by Matthew O'Donnell
- 3. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 4. (c) Judy Gallagher, some rights reserved (CC BY)
- 5. (c) Marcello Consolo, some rights reserved (CC BY-NC-SA)
- 6. (c) Catherine Beard, some rights reserved (CC BY-NC), uploaded by Catherine Beard
- 7. (c) Gilles Gonthier, some rights reserved (CC BY)
- 8. (c) Ken Schneider, some rights reserved (CC BY-NC), uploaded by Ken Schneider
- 9. (c) Victor W Fazio III, some rights reserved (CC BY-NC-ND), uploaded by Victor W Fazio III
- 10. (c) Martin Cooper, some rights reserved (CC BY)
- 11. (c) S. Rae, some rights reserved (CC BY)
- 12. (c) Sam Kieschnick, some rights reserved (CC BY), uploaded by Sam Kieschnick
- 13. (c) Mary Keim, some rights reserved (CC BY-NC-SA)
- 14. (c) K Schneider, some rights reserved (CC BY-NC)
- 15. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
- 16. (c) Denis Doucet, some rights reserved (CC BY-NC), uploaded by Denis Doucet
- 17. (c) Jimmy Dee, some rights reserved (CC BY-SA), uploaded by Jimmy Dee
- 18. (c) Donají Graham, some rights reserved (CC BY-NC), uploaded by Donají Graham
- 19. (c) Wayne Fidler, some rights reserved (CC BY-NC), uploaded by Wayne Fidler
- 20. (c) Sharleen, some rights reserved (CC BY-NC), uploaded by Sharleen
- 21. (c) Brandt Magic, some rights reserved (CC BY-NC), uploaded by Brandt Magic
- 22. (c) jmmaes, some rights reserved (CC BY-SA), uploaded by jmmaes
- 23. (c) adriscoll, some rights reserved (CC BY-NC), uploaded by adriscoll
- 24. no rights reserved, uploaded by calinsdad
- 25. (c) Allan Hopkins, some rights reserved (CC BY-NC-ND)
