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.
In A Nutshell. Seaweed is a very, very broad term that is used to describe the many marine plants and algae that live in the worldâs waters. Kelp is actually a subgroup of seaweed and is also the largest form of seaweed. Seaweeds range in size from the microscopic to the massive, while kelp are so large and complex that they form massive underwater forests.