Downforce - Airfoils. 1  The amount of downforce created by the wings or spoilers on a car is dependent primarily on two things... 2  The shape, including surface area, aspect ratio and cross-section of the device, and. 3  The device's orientation (or angle of attack).
Types of Seaweed. The simplest of the seaweeds are among the cyanobacteria, formerly called the blue-green algae, and green algae (division Chlorophyta), found nearest the shore in shallow waters and usually growing as threadlike filaments, irregular sheets, or branching fronds.
The Sargasso Sea is characterized by a free-floating mass of seaweed, predominately S. natans and S. fluitans, in the western Atlantic Ocean. Sargassum is also known as sea holly because of its highly branched thallus with hollow, berrylike floats (pneumatocysts) and many leaflike sawtooth-edged blades.