Machinery category: 869 books

La Revolución Industrial

Christo Ananth et al. [26] gave a brief description and solved problems for students in Bahrain to know about Centroids and Center of Gravity of Common Shapes of Areas.

Machines are everywhere! They help make work easier, like when you need to lift something heavy or reach way up high. Some machines are so simple that you might not think of them as machines. There are six simple machines: the lever, the wheel and axle, the pulley, the ramp, the wedge, and...

In this encouraging Spanish-translated nonfiction reader, children visit an actual space camp! Readers will learn what astronauts eat, where they sleep, and how they prepare for journeys into space through the help of robots and simulators. Featuring vibrant images, informative text, and fun, interesting...

Believe it or not, submarines date back to the seventeenth century! Discover how they developed from early designs such as the one-person Turtle into streamlined, stealthy warships. Along the way, you'll look right inside a German U-boat, find out how a sub dives and surfaces, and see sonar systems...

Take a fascinating tour of the mightiest fighting ships of all time—from ancient Greek galleys to gigantic modern aircraft carriers. Get an up-close view of these incredible battleships as you step onto the gun decks of HMS Victory, look inside the control bridge of USS Zumwalt, and explore a modern...

Follow the powerful story of fighter aircraft—from the earliest six-winged inventions used during World War I right up to modern supersonic stealth fighters. Along the way, explore inside the cockpit of a Supermarine Spitfire, the engine of the jet-powered Messerschmitt Me 262, and the inner workings...

The earliest tank was designed in the fifteenth century. Since then, tanks have developed into huge, powerful weapons. Get an up-close view of mighty tanks and artillery as you learn about a World War II gun that moved on railroad tracks, how explosive artillery shells work, and what's inside an armored...

What does a doctor do? These kids have a few ideas. But to learn more, they talk to Dr. Zambil. He tells them how he helps sick or hurt kids feel better. He sees healthy kids to help keep them healthy. He even helps train new doctors. Let's hear it for doctors!

The fascinating stories of inventions that could have changed the world, should have made a difference, or would have astounded us all, but for one reason or another, didn’t. Some inventions were too wacky, weird, or unwieldy. Others simply didn’t work. And still others may be the next big thing...

Intermediate readers discover the different ways plants reproduce.

           In this investigation an attempt has been made to study the effect of various composition of boron carbide powder reinforced with zircon sand in aluminium matrix composite. From this investigation the following important conclusions are derived: Detailed literature survey has been...

Whiteboards, computers, and stickers. What do these things have in common? They're all tools Ms. Crawford uses in her job. Ms. Crawford is a fourth grade teacher. She invites a group of students learning about community helpers to visit her classroom. She shows them the many ways she helps her students learn. Hooray for teachers!

How does cotton turn into a soft T-shirt? Follow each step in the production cycle—from growing cotton to wearing a comfy shirt—in this fascinating book!