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.
Seaweed is the common name for countless species of marine plants and algae that grow in the ocean as well as in rivers, lakes, and other water bodies.Kelp forest in the Channel Islands National Marine Sanctuary and National Park.Some seaweeds are microscopic, such as the phytoplankton that live suspended in the water column and provide the base for most marine food chains.Some are enormous, like the giant kelp that grow in abundant âforestsâ and tower like underwater redwoods from their roots at the bottom of the sea.elp forest in the Channel Islands National Marine Sanctuary and National Park. Some seaweeds are microscopic, such as the phytoplankton that live suspended in the water column and provide the base for most marine food chains.