The most complicated machines often rely on a few simple principles of technology, such as wheels, springs, screws, ramps, and wedges. This series explores these technologies by relating them to common machines in our everyday world from bedsprings to skateboards to zippers. Numerous fact files offer readers fast facts and other pertinent information.
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The most complicated machines often rely on a few simple principles of technology, such as wheels, springs, screws, ramps, and wedges. This series explores these technologies by relating them to common machines in our everyday world from bedsprings to skateboards to zippers. Numerous fact files offer readers fast facts and other pertinent information.
Read Less
Add this copy of Pulleys and Gears to cart. $10.98, like new condition, Sold by ThriftBooks-Atlanta rated 5.0 out of 5 stars, ships from Brownstown, MI, UNITED STATES, published 2006 by Heinemann Educational Books.
Add this copy of Pulleys and Gears to cart. $10.98, like new condition, Sold by ThriftBooks-Baltimore rated 4.0 out of 5 stars, ships from Halethorpe, MD, UNITED STATES, published 2006 by Heinemann Educational Books.
Add this copy of Pulleys and Gears to cart. $10.98, good condition, Sold by ThriftBooks-Reno rated 4.0 out of 5 stars, ships from Reno, NV, UNITED STATES, published 2006 by Heinemann Educational Books.
Add this copy of Pulleys and Gears to cart. $10.98, good condition, Sold by ThriftBooks-Dallas rated 4.0 out of 5 stars, ships from Dallas, TX, UNITED STATES, published 2006 by Heinemann Educational Books.
Add this copy of Pulleys and Gears (Simple Machines) to cart. $11.50, new condition, Sold by Chidoc5 Rare Books rated 3.0 out of 5 stars, ships from Highland Park, IL, UNITED STATES, published 2006 by Heinemann.
Add this copy of Pulleys and Gears (Simple Machines) to cart. $64.42, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2006 by Heinemann/Raintree.
