Edited by Kelly Krechmer, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Kristian Peters, some rights reserved (CC BY-NC-SA)
- 2. (c) Юрий Данилевский (Yuriy Danilevsky), some rights reserved (CC BY), uploaded by Юрий Данилевский (Yuriy Danilevsky)
- 3. (c) AnneTanne, some rights reserved (CC BY-NC)
- 4. (c) manual crank, some rights reserved (CC BY-NC-SA)
- 5. (c) Thorsten Usée, some rights reserved (CC BY-NC), uploaded by Thorsten Usée