Eric Walker added Sea state - Wikipedia to Ships, boats, submersibles and submarines and Fluid dynamics

Eric Walker added Free surface effect - Wikipedia to Ships, boats, submersibles and submarines and Fluid dynamics

Eric Walker added a number of topics and a number of links to Physics, and added Physics to Science, engineering, mathematics and the humanities

Eric Walker added Angle of attack sensors to Angle of attack, and added Angle of attack to Fluid dynamics

Eric Walker added Angle of attack and Free surface effect - Wikipedia and Sea state - Wikipedia to Fluid dynamics, and added Fluid dynamics to Physics