Inventions & Gadgets!Unknown - 2011
Some inventions are earth shattering and have a significant impact on the planet. They make life more convenient, or provide a safer, cleaner environment. Electric cars, personal submarines, and water bikes are new inventions that may become common. With the Tacoma Narrows Bridge as a learning experience, bridge building engineers are using everything from the latest in technology to Lego blocks to design stable and durable bridges. Every invention starts with a great idea!
Publisher: San Francisco : Cerebellum Corporation, 2011.
Characteristics: 1 videodisc (ca. 23 min.) : sd., col. ; 4 3/4 in.
Alternative Title: Inventions and gadgets!