Spin the gears and go! Go! Go! Little ones will love exploring with Thomas & Friends in this new sound book perfect for little ones constantly on the move. To trigger the audio, little learners follow directions to turn one of the 4 connected gears on the module. Each different turn triggers one of five sounds at random! Caregivers will love that the hands-on gears promote STEM learning and critical-thinking skills through play, and little ones will love zipping and zooming through reading (and learning!) the fun story.

This is a Blue Ribbon Book featuring 5 "congratualtions " for doing something well, 5 random sounds and music, and important childhood milestones.

Among the many topics covered in this handy, pocket-sized guide are air and gases, carpentry and construction, pipes, pumps, computers, electronics, geology, math, surveying and mapping, and weights and measures. Includes tables, charts, drawings, lists & formulas.

Unleash Your Inner Mechanical Mastermind Welcome to the wondrous world of Thomas Willeford, aka Lord Archibald "Feathers" Featherstone, in which he shares his closely guarded secrets of Steampunkery. Filled with do-it-yourself projects, Steampunk Gear, Gadgets, and Gizmos: A Maker's Guide to Creating Modern Artifacts shows you how to build exquisite, ingenious contraptions on a budget. Learn from Lord Featherstone as he distills his wealth of hard-learned skills, describes how to use the readily available tools of the modern mad scientist, and expounds on the art and philosophy of scavenging unique components and raw materials. The perfect companion for the hobbyist and advanced machinist alike, this inventive volume will guide you through the creation of your very own infernal devices. Get steamed with these provocative projects: Aetheric ray deflector solid brass goggles Calibrated indicator gauges Ferromagnetic self-scribing automated encyclopedia (or, the Steampunk book drive) High voltage electro-static cannon (or, the lamp gun) Tesla-pod chrono-static insulating field generator (or, the mobile device enclosure) Altitude mask with integrated respiratory augmentation Armoured pith helmet Mark I superior replacement arm with integrated Gatling gun attachment Visit the companion website, www.mhprofessional.com/steampunk, for videos, images, and more bonus content! Make Great Stuff! TAB, an imprint of McGraw-Hill Professional, is a leading publisher of DIY technology books for makers, hackers, and electronics hobbyists.

An in-depth exploration of the effects of different steels, heat treatments, and edge geometries on knife performance. This book provides ratings for toughness, edge retention, and corrosion resistance for all of the popular knife steels. Micrographs of over 50 steels. Specific recommended heat treatments for each steel. And answers to questions like: 1) Does a thinner or thicker edge last longer? 2) What heat treatment leads to the best performance? 3) Are there performance benefits to forging blades? 4) Should I use stainless or carbon steel? All of these questions and more are answered by a metallurgist who grew up around the knife industry.