Books with title Simple Machines at Work

Providing early introductions to STEM education, each book in this Read and Learn series uses simple text and labeled photographs to examine a range of cool machines used in different environments such as airports, farms, construction sites, and on the road. As well as drawing in readers with exciting photographs, the books also reveal how each machine covered is designed to solve a particular problem.

Excerpt from Machines at WorkThe big machine in the picture is a shovel that's used for digging an enormous hole. In one bite, its scoop can tear out a chunk of earth more than twice as tall as a man. Lts long arm, called the boom, lifts the load as high as the top of a seven story building, then swings around and drops it almost a city block away.There are only a few shovels like this in the world. They were especially made to work where beds of coal lie close to the surface of the earth, covered by a layer of soil. The shovels clear away the soil so that other machines can dig out the coal.When a giant shovel has cleared off one spot, its crawlers begin to turn, and it creeps slowly ahead. But it can't travel on roads. It's far too big and heavy and tall so big, in fact, that it came to the mine in sepa rate pieces. Forty-five freight cars were needed to haul all the parts for just one machine from the factory to the mine. Then experts put the parts together right where the shovel was to start digging.And dig it does. In one minute its scoop can bite out as much dirt as men could dig just using their muscles to lift ordinary hand shovels!The giant shovel is one of the biggest machines ever made, but there's another that can lift even bulkier things. It is an overhead crane that works in a shipyard.Often the crane hoists big boilers out of ships so that repair men can work on them. It is so huge that it carries another crane on its back. The piggy-back crane that's its real name reaches down and lifts things off the deck of the ship, too.Hammering is another kind of muscle work thatmachines can do quickly and easily. Suppose the water pipes under your street need mending. Repair men have to tear up the pavement in order to reach the pipes. So they bring in jack hammers to do the pound ing. Strong blasts of air run the hammers, and, in no time, the pavement is broken up.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Forces and motion are key concepts in the elementary science curriculum. How Simple Machines Work uses easy-to-read text and full-color photographs to help young readers understand the principles behind simple machines. Each volume includes three diagrams to enhance understanding. The text has been vetted by a science curriculum consultant and a reading consultant, allowing students to build reading skills as well as their knowledge of science concepts.

Forces and motion are key concepts in the elementary science curriculum. How Simple Machines Work uses easy-to-read text and full-color photographs to help young readers understand the principles behind simple machines. Each volume includes three diagrams to enhance understanding. The text has been vetted by a science curriculum consultant and a reading consultant, allowing students to build reading skills as well as their knowledge of science concepts.

Leopold Classic Library is delighted to publish this classic book as part of our extensive collection. As part of our on-going commitment to delivering value to the reader, we have also provided you with a link to a website, where you may download a digital version of this work for free. Many of the books in our collection have been out of print for decades, and therefore have not been accessible to the general public. Whilst the books in this collection have not been hand curated, an aim of our publishing program is to facilitate rapid access to this vast reservoir of literature. As a result of this book being first published many decades ago, it may have occasional imperfections. These imperfections may include poor picture quality, blurred or missing text. While some of these imperfections may have appeared in the original work, others may have resulted from the scanning process that has been applied. However, our view is that this is a significant literary work, which deserves to be brought back into print after many decades. While some publishers have applied optical character recognition (OCR), this approach has its own drawbacks, which include formatting errors, misspelt words, or the presence of inappropriate characters. Our philosophy has been guided by a desire to provide the reader with an experience that is as close as possible to ownership of the original work. We hope that you will enjoy this wonderful classic book, and that the occasional imperfection that it might contain will not detract from the experience.