Rachel and Sarah build their own hovercraft out of plywood, a picnic tablecloth and a leaf blower. Ciara, Brittney and Maria engineer a boat entirely out of milk cartons to enter in a hometown race. Mechanical engineer Una-May O’Reilly designs mobile robots. Her research in artificial intelligence (AI) will eventually give human faces and personalities to robots.

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

Hovercraft Experiments (5:09); --Hovercraft Speed and Accuracy (5:01); -- Milk Carton Boat (6:02); -- Boat Test and Race Results (3:24); -- Credits: Robot Construction: Dragon Fly TV (0:39); .