Professor Beetoven Presents: A Very Special Clock (The Adventures of Professor Beetoven Book 8)

This is a great educational ebook for children who are interested in learning about clocks. The story begins with Professor Beetoven and his friends Tad, the frisky frog and Big Kat, the cat without stripes who are roughing it on a camping trip. They learn all about how to tell time by the position of the sun, how sun dials work, and the use of water clocks. This talk leads to the history of clocks. They learn all about Giovanni de-Dondi, and the invention of the first mechanical clock. From http://cartoongems.com/