Paint Saves Fuel
An interesting idea: Remove roughness from wing surfaces by using a paint that fills the gaps between rough spots. As reported in the WSJ Easy Jet and British Airways have adopted the product and claim fuel savings. British Airways Extends Paint Coating Trail, To Save Fuel Costs – WSJ.com.
Physics animations and film clips: Physclips.
Physics animations and film clips: Physclips..
The physics of sailing
You think you know The physics of sailing.