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.
Introduction to Sea Anemone. Sea Anemone are predatory and as you can tell from their name, they live in bodies of water. They are related to both jellyfish and corral. It is a type of polyp that is attached to a surface in the water. They are very small, often less than one inch in diameter. The largest ones are only about 1 Â½ inches wide.