Danielle, an accomplished sport kite flyer, wants to learn how the height-width proportion of a kite (called its aspect ratio) affects the kite’s performance during competitive maneuvers. Using common household items, Nathanial constructs his own wind tunnel to measure the aerodynamic efficiency of toy race cars. Weather researcher Ameri Gurley studies the damaging effects of tornadoes and hurricanes.

Originally released by Big Media Holdings LLC, 2013. Streaming video file encoded with permission for digital streaming by Infobase on February 10, 2017.

Kite Techniques (6:16); --Precision Kite Competition (3:07); -- Damaging Effects of Wind (3:00); -- Which Car Shape Has the Least Drag? (7:09); -- Credits: Aerodynamics: Dragon Fly TV (0:42); .