By providing power to a propeller it can impart motion to the air and can therefore couple human power output to provide propulsion for an airplane. For boats, a propeller used for propulsion can ...

[Steve Mould] recently got the opportunity to board a much larger example, sized for an actual human passenger. The boat belongs to the The AHHAA Science Center in Estonia, along with a smaller ...

Types of non-pleasure commercial vessels include, but are not limited to, small passenger boats, work boats, and human-powered boats such as canoes and kayaks, landing crafts, and aluminum hull boats.