Machines at Work
by Mary Elting
Publisher: Harvey House 1962
ISBN/ASIN: B0006AY0EG
Number of pages: 100
Description:
People have always been able to work and build wonderful things, using just their muscles. And they can do a very great deal more when they use their brains, too. They can invent machines to make work thousands of times easier and faster.
Download or read it online for free here:
Download link
(multiple formats)
Similar books
A Gallery of Dinosaurs and Other Early Reptilesby David Peters - Random House Value Publishing
The presentation of the creatures is broader than many dinosaur books for children, including one hundred dinosaurs and other prehistoric reptiles of all sizes. The illustrations here portray the dinosaurs to scale in relation to one another.
(13243 views)
Trains at Workby Mary Elting - Garden City Books
Sam is the fireman on a big freight locomotive. When Sam was a little boy, he listened to his father and grandfather talking railroad talk. They used all kinds of words that he didn't understand. They had wonderful nicknames for each other.
(9902 views)
Rick Brant's Science Projectsby John Blaine - Applewood Books
A non-fiction companion volume to the collectible Rick Brant Science-Adventure Series. This reprint includes easy-to-read chapters about codes and ciphers, slingshots and archery, microscopes and radios, tricks and games, and scientific experiments.
(11275 views)
Big Cats- Wikibooks
A free children's book from the Wikibooks community. Wild cats are some of Earth's grandest treasures, and their stories excite the imagination of kids of all ages. Wikijunior Big Cats helps to explore this fascinating family.
(14593 views)