These inventions changed the world – learn all about them injust 30 seconds!

From the first flushing toilet to futuristic robots,Inventions in 30Secondsexplains how key inventions revolutionized the world. Delivered inan energetic, informative style, children will gain a better understanding ofhow everyday life has been shaped by great inventions.

The 30 Seconds series takes readers on a journey ofdiscovery through a wide range of fascinating subjects. Each topic is presentedas a quick 30-second soundbite, supported by flash summaries and full-colorartwork. Fun, interactive missions with things to make or do support thetopics, encouraging readers to test, explore, and discover even more.