While rafting on the American River, Rasheed, Kohner, Scotty and JB measure the river grade, water flow and study the flow patterns around eddies, holes, and tongues. Rachel and Sarah build their own hovercraft out of plywood, a picnic tablecloth and a leaf blower. Young equestriennes Mallory and Ting don faux horse ears, positioned to signal both contentedness and aggression, to investigate how their horses communicate and NASA robotics research engineer, Dr. Ayanna Howard, uses artificial intelligence (AI) to make robots “smarter.”.

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

American River: Handling Obstacles (4:23); --American River: Satan's Cesspool (1:54); -- Hovercraft Experiments (5:45); -- Artificial Intelligence (2:39); -- Horse Ears Test (4:46); -- Credits: Animal Behavior: Dragon Fly TV (0:45); .