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Pull, Lift, and Lower: A Book about Pulleys
Introduce young scientists to the basics of pulleys. Through charming illustrations and simple, easy-to-follow text, this nonfiction book introduces pre-readers to the benefits of these engineering marvels, providing everyday examples of a flagpole, a crane, an elevator, and...
Pull, Lift, and Lower: A Book about Pulleys
Introduce young scientists to the basics of pulleys. Through charming illustrations and simple, easy-to-follow text, this nonfiction book introduces pre-readers to the benefits of these engineering marvels, providing everyday examples of a flagpole, a crane, an elevator, and...
![Sube Y Baja: Un Libro Sobre Poleas [Spanish] 1404832246 Book Cover](https://m.media-amazon.com/images/I/518v24y5mOL._SL500_.jpg)
Sube Y Baja: Un Libro Sobre Poleas [Spanish]
Una polea es una m quina simple. Las m quinas simples facilitan el trabajo, como levantar cargas pesadas o mover cosas de arriba a abajo. Las poleas nos ayudan a levantar cosas que no podemos levantar solos. Qu m s puede hacer una polea?
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