Edited by chachmandu, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Юрий Данилевский (Yuriy Danilevsky), some rights reserved (CC BY), uploaded by Юрий Данилевский (Yuriy Danilevsky)
- 2. (c) Kristian Peters, some rights reserved (CC BY-NC-SA)
- 3. (c) Евгений Скляр, some rights reserved (CC BY-NC), uploaded by Евгений Скляр
- 4. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 5. (c) Jenn Forman Orth, some rights reserved (CC BY-NC-SA)
- 6. (c) mrholle, some rights reserved (CC BY-NC-SA)
- 7. (c) Anita Martinz, some rights reserved (CC BY-NC)
- 8. (c) Ken-ichi Ueda, some rights reserved (CC BY)
- 9. (c) manual crank, some rights reserved (CC BY-NC-SA)
- 10. (c) edgeplot, some rights reserved (CC BY-NC-SA)
