7 Things That Ended Up In Completely The Wrong Place - Page 6 of 9

Chainsaw in surgery

This tool is said to have origins in Germany where orthopaedist used a chainsaw –like tool. It had links of a chain carrying small cutting teeth with the edges set at an angle. The chain was moved around a guiding blade by turning the handle of a sprocket wheel. It was made to cut bones. However, by the 18th century people had started using a faster chainsaw as an effective tool for cutting timber.