

The Science of Disney Imagineering TRAJECTORY
Spring 2009 DVDThe camera then follows Kalama into his workspace at Disney, where he explains - using a churro; yes, a churro, among other things - how trajectory is defined as the path a free-flying object follows through the air, before addressing the impact of gravity, wind, angles, speed, size, mass, etc. After the basic science has been noted, "Trajectory" moves to Disney theme parks - visiting a stunt show, a ride, a fireworks display and that roller coaster again -- to depict physical/visual examples of the scientific principle in action. Much like other Disney educational titles, "Trajectory" doesn't come cheap (it's $49.95 and runs under 25 minutes; though, in fairness, it's a classroom edition with public performance rights) and features limited bonus materials (a try-it-yourself segment on making a water balloon slingshot, a downloadable educator's guide).