Accidentally plunged back in time to Poland in the year 1231, Conrad Schwartz is determined to build up the country before the Mongol invasion that will come ten years later

"Look out, Junie B. Jones! Ellie the engineer is thinking, making, creating, and showing enthusiasm and brilliance with her creations!" -School Library Connection A charming, hilarious illustrated middle grade about a girl who is an engineer--no, not the kind on a train, the kind that builds things! Perfect creative, STEM-powered fun for girls who have interests in how things work. Ellie is an engineer. With a tool belt strapped over her favorite skirt (who says you can't wear a dress and have two kinds of screwdrivers handy, just in case?), she invents and builds amazing creations in her backyard workshop. Together with her best friend Kit, Ellie can make anything. As Kit's birthday nears, Ellie doesn't know what gift to make until the girls overhear Kit's mom talking about her present--the dog Kit always wanted! Ellie plans to make an amazing doghouse, but her plans grow so elaborate that she has to enlist help from the neighbor boys and crafty girls, even though the two groups don't get along. Will Ellie be able to pull off her biggest project yet, all while keeping a secret from Kit? Illustrated with Ellie's sketches and plans, and including backmatter with a fun how-to guide to tools, this is a STEM- and friendship-powered story full of fun!

NEW YORK TIMES BESTSELLER Paul Kennedy, award-winning author of The Rise and Fall of the Great Powers and one of today’s most renowned historians, now provides a new and unique look at how World War II was won. Engineers of Victory is a fascinating nuts-and-bolts account of the strategic factors that led to Allied victory. Kennedy reveals how the leaders’ grand strategy was carried out by the ordinary soldiers, scientists, engineers, and businessmen responsible for realizing their commanders’ visions of success. In January 1943, FDR and Churchill convened in Casablanca and established the Allied objectives for the war: to defeat the Nazi blitzkrieg; to control the Atlantic sea lanes and the air over western and central Europe; to take the fight to the European mainland; and to end Japan’s imperialism. Astonishingly, a little over a year later, these ambitious goals had nearly all been accomplished. With riveting, tactical detail, Engineers of Victory reveals how. Kennedy recounts the inside stories of the invention of the cavity magnetron, a miniature radar “as small as a soup plate,” and the Hedgehog, a multi-headed grenade launcher that allowed the Allies to overcome the threat to their convoys crossing the Atlantic; the critical decision by engineers to install a super-charged Rolls-Royce engine in the P-51 Mustang, creating a fighter plane more powerful than the Luftwaffe’s; and the innovative use of pontoon bridges (made from rafts strung together) to help Russian troops cross rivers and elude the Nazi blitzkrieg. He takes readers behind the scenes, unveiling exactly how thousands of individual Allied planes and fighting ships were choreographed to collectively pull off the invasion of Normandy, and illuminating how crew chiefs perfected the high-flying and inaccessible B-29 Superfortress that would drop the atomic bombs on Japan. The story of World War II is often told as a grand narrative, as if it were fought by supermen or decided by fate. Here Kennedy uncovers the real heroes of the war, highlighting for the first time the creative strategies, tactics, and organizational decisions that made the lofty Allied objectives into a successful reality. In an even more significant way, Engineers of Victory has another claim to our attention, for it restores “the middle level of war” to its rightful place in history. Praise for Engineers of Victory “Superbly written and carefully documented . . . indispensable reading for anyone who seeks to understand how and why the Allies won.”—The Christian Science Monitor “An important contribution to our understanding of World War II . . . Like an engineer who pries open a pocket watch to reveal its inner mechanics, [Paul] Kennedy tells how little-known men and women at lower levels helped win the war.”—Michael Beschloss, The New York Times Book Review “Histories of World War II tend to concentrate on the leaders and generals at the top who make the big strategic decisions and on the lowly grunts at the bottom. . . . [Engineers of Victory] seeks to fill this gap in the historiography of World War II and does so triumphantly. . . . This book is a fine tribute.”—The Wall Street Journal “[Kennedy] colorfully and convincingly illustrates the ingenuity and persistence of a few men who made all the difference.”—The Washington Post “This superb book is Kennedy’s best.”—Foreign Affairs

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.

With more than 40 things to invent, draw, and make, featuring art from the beloved New York Times bestselling picture book Rosie Revere, Engineer, this activity book contains kid-friendly projects of all kinds and is the perfect gift for curious young readers! Soon enough children will be engineering whizzes just like Rosie, and along the way she’ll reassure them that failure, flops, mess-ups and cross-outs are part of the process. Do you like to make things? Dream up gadgets to improve your life and the lives of others? Then you are ready to join Rosie Revere and become a great engineer! Build a Solar Oven Make a Simple Catapult Design a Better Bicycle Collect “Engineer’s Treasure” And much more! Engineering is persevering, and this book is the perfect place for trying out, crossing out, and trying again. There is no better way to introduce would-be engineers to science and engineering than with their new best friend, Rosie. It’s fun for them and a great way for parents who want to get their kids excited about STEM (science, technology, engineering, math) in school. And now you can follow Rosie’s further adventures—with her friends Iggy Peck and Ada Twist—in the instant New York Times bestseller Rosie Revere and the Raucous Riveters, a chapter book starring The Questioneers! Don’t miss these STEM favorites! Rosie Revere, Engineer Iggy Peck, Architect Ada Twist, Scientist Iggy Peck’s Big Project Book for Amazing Architects Rosie Revere and the Raucous Riveters Ada Twist and the Perilous Pants Ada Twist’s Big Project Book for Stellar Scientists

"This easy-to-use pocket book contains a wealth of up-to-date, useful, practical and hard-to- find information. With 160 matt laminated, greaseproof pages you'll enjoy glare-free reading and durability. Includes: data sheets, formulae, reference tables and equivalent charts. New content in the 3rd edition includes; Reamer and Drill Bit Types, Taper Pins, T-slot sizing, Counterboring/Sinking, Extended Angles Conversions for Cutting Tapers, Keyways and Keyseats, Woodruff Keys, Retaining Rings, 0-Rings, Flange Sizing, Common Workshop Metals, Adhesives, GD&T, Graph and Design Paper included at the back of the book. Engineers Black Book contains a wealth of up-to-date, useful, information within over 160 matt laminated grease proof pages. It is ideal for engineers, trades people, apprentices, machine shops, tool rooms and technical colleges." -- publisher website.

Born to Be Weird... When Tom Kolczyskrenski got his discharge papers from the Air Force, he decided to look up his old pals¾and the world would never be the same. At one time, the oddly mismatched trio had been roommates, then they'd gone their separate ways. Tom, for lack of money, enlisted in the Air Force to learn electronics. The other two had finished college, lan McTavish going into mechanical engineering and a job with GM, and Jim Hasenpfeffer into behavioral science, leading to his having gotten a Department of Defense grant to¾this is serious stuff, now¾study social interactions in motorcycle gangs. So the three set out to be their own motorcycle gang. But these easy riders had barely begun to closely observe their own interactions when they ran across a strange perfectly hemispherical hole in the ground where a house used to be, with everything that had been in the sphere of influence slowly materializing in bits and pieces in the surrounding area. And they found the plans for the machine that had done this, and were sure they could duplicate it and get rich. But before long they would be wishing they had kept on being the three musketeers on bikes, instead of the three stooges of time travel.... At the publisher's request, this title is sold without DRM (Digital Rights Management).

Key concepts and best practices for new software engineers — stuff critical to your workplace success that you weren’t taught in school. For new software engineers, knowing how to program is only half the battle. You’ll quickly find that many of the skills and processes key to your success are not taught in any school or bootcamp. The Missing README fills in that gap—a distillation of workplace lessons, best practices, and engineering fundamentals that the authors have taught rookie developers at top companies for more than a decade. Early chapters explain what to expect when you begin your career at a company. The book’s middle section expands your technical education, teaching you how to work with existing codebases, address and prevent technical debt, write production-grade software, manage dependencies, test effectively, do code reviews, safely deploy software, design evolvable architectures, and handle incidents when you’re on-call. Additional chapters cover planning and interpersonal skills such as Agile planning, working effectively with your manager, and growing to senior levels and beyond. You’ll learn: How to use the legacy code change algorithm, and leave code cleaner than you found it How to write operable code with logging, metrics, configuration, and defensive programming How to write deterministic tests, submit code reviews, and give feedback on other people’s code The technical design process, including experiments, problem definition, documentation, and collaboration What to do when you are on-call, and how to navigate production incidents Architectural techniques that make code change easier Agile development practices like sprint planning, stand-ups, and retrospectives This is the book your tech lead wishes every new engineer would read before they start. By the end, you’ll know what it takes to transition into the workplace–from CS classes or bootcamps to professional software engineering.

Engineering represents an ordered activity of creative design and inventive manufacture of ingenious devices. Its practitioners have thereby stimulated individuals, enlivened communities, enriched civilizations, and contributed to the shaping of cultures.The authors of this innovative text develop a systematic framework for engineering in time, making extensive use of adaptive heterogeneous progressions. When combined with considerations of feedback, feedforward, recursion, and branching, an evolving and comprehensive characterization of engineering becomes evident. It is in this blending of chronology, emerging theory, and professional practice that engineering finds its foundational role in innovative design, device reliability, intellectual property, technology risks, public safety, professional ethics, material accounting, and other recurring themes relevant to contemporary engineering. Engineering clearly emerges as a complex and increasingly important profession.The authors introduce concepts and methods — including a critical definition of engineering -and selectively adapt symbolic-mathematical relations. The technical level of analysis is suitable for the undergraduate curriculum commonly encountered in colleges of engineering./a