Hydrodynamics: The science concerned with the motion or flow of water around objects. Improved understanding has led to ship designs that are more efficient.
Propulsion Systems: These are systems designed to move a vehicle forward, such as an engine or sails on a boat. Advances in propulsion systems have contributed significantly towards increasing boat efficiency.
Maritime Trade Routes: These are sea routes used for trade between different countries or regions. More efficient boats mean goods can be transported along these routes more quickly and cheaply.