Life outside the robot factory is confusing.Little Robot has a lot to learn...And that's what friends are for.But with danger in the way, will friendship be enough to save them?

    It also works beautifully with other open source tools, such as the MySQL database and the Apache web server. However, as more web sites are developed in PHP, they become targets for malicious attackers, and developers need to prepare for the attacks.Security is an issue that demands attention, given the growing frequency of attacks on web sites. Essential PHP Security explains the most common types of attacks and how to write code that isn't susceptible to them. By examining specific attacks and the techniques used to protect against them, you will have a deeper understanding and appreciation of the safeguards you are about to learn in this book.In the much-needed (and highly-requested) Essential PHP Security, each chapter covers an aspect of a web application (such as form processing, database programming, session management, and authentication). Chapters describe potential attacks with examples and then explain techniques to help you prevent those attacks.Topics covered include:Preventing cross-site scripting (XSS) vulnerabilitiesProtecting against SQL injection attacksComplicating session hijacking attemptsYou are in good hands with author Chris Shiflett, an internationally-recognized expert in the field of PHP security. Shiflett is also the founder and President of Brain Bulb, a PHP consultancy that offers a variety of services to clients around the world.

    In this lively and educational reader, they'll learn how those plants grow. Kids will take this magical journey from seed pollination to plant growth, learning about what plants need to thrive and grow with the same careful text, brilliant photographs, and the fun approach National Geographic Readers are known for.

    They have to be knowledgeable about a vast repertoire of processes, ranging from what used to be known as traditional "crafts" to the latest technology, to enable their designs to be manufactured effectively and efficiently. Information on the internet about such processes is often unreliable, and search engines do not usefully organize material for designers.This fundamental new resource explores innovative production techniques and materials that are having an impact on the design industry worldwide. Organized into four easily referenced parts—Forming, Cutting, Joining, and Finishing—over seventy manufacturing processes are explained in depth with full technical descriptions; analyses of the typical applications, design opportunities, and considerations each process offers; and information on cost, speed, and environmental impact. The accompanying step-by-step case studies look at a product or component being manufactured at a leading international supplier.A directory of more than fifty materials includes a detailed technical profile, images of typical applications and finishes, and an overview of each material's design characteristics. With some 1,200 color photographs and technical illustrations, specially commissioned for this book, this is the definitive reference for product designers, 3D designers, engineers, and architects who need a convenient, highly accessible, and practical reference.

    Full color.

    At the time, sharks were seen as mindless killing machines, but Eugenie knew better and set out to prove it. Despite many obstacles in her path, Eugenie was able to study the creatures she loved so much. From her many discoveries to the shark-related myths she dispelled, Eugenie's wide scientific contributions led to the well-earned nickname "Shark Lady."

    Includes facts about Nepal.

    But what happens when a bag breaks or is no longer needed? In Njau, Gambia, people simply dropped the bags and went on their way. One plastic bag became two. Then ten. Then a hundred.The bags accumulated in ugly heaps alongside roads. Water pooled in them, bringing mosquitoes and disease. Some bags were burned, leaving behind a terrible smell. Some were buried, but they strangled gardens. They killed livestock that tried to eat them. Something had to change.Isatou Ceesay was that change. She found a way to recycle the bags and transform her community. This inspirational true story shows how one person's actions really can make a difference in our world.

    Plowing a potato field in 1920, a 14-year-old farm boy from Idaho saw in the parallel rows of overturned earth a way to "make pictures fly through the air." This boy was not a magician; he was a scientific genius and just eight years later he made his brainstorm in the potato field a reality by transmitting the world's first television image. This fascinating picture-book biography of Philo Farnsworth covers his early interest in machines and electricity, leading up to how he put it all together in one of the greatest inventions of the 20th century. The author's afterword discusses the lawsuit Farnsworth waged and won against RCA when his high school science teacher testified that Philo's invention of television was years before RCA's.

    Mina became an astronomer in a time when women were discouraged from even looking through telescopes. Yet Mina believed that the universe, with its billions of stars, was a riddle—and she wanted to help solve it.Mina ultimately helped to create a map of the universe that paved the way for astronomers. Newbery Honor–winning Kathryn Lasky shares her incredible true story.Use this book to encourage conversation at home and the classroom about women and STEM. This is a captivating picture book that centers around women and empowerment, perfect for Women's History Month and to be shared alongside such powerful titles as Hidden Figures by Margot Lee Shetterly and She Persisted by Chelsea Clinton.Kathryn Lasky’s nonfiction book Sugaring Time was a Newbery Honor Book, and the books she authored in the Dear America and Royal Diaries series have sold over 3 million copies. Julianna Swaney is the illustrator of the #1 New York Times bestselling We Are the Gardeners by Joanna Gaines.

    Each project uses color-coded pieces and is photographed from multiple angles, making it easy to see how the models are assembled without the need for step-by-step instructions. Every model illustrates a different principle, concept, or mechanism that will inspire your own original creations. You're encouraged to use these elements as building blocks to create your own masterpieces.The Technic models in Simple Machines demonstrate basic configurations of gears, shafts, pulleys, turntables, connectors, and the like. You'll learn how to create small, elegant machines like cranes, operable doors, motorized cars, a rubber band-powered rocket launcher, a hand-cranked drag racer, and even musical instruments.This visual guide, the first in the three-volume LEGO Technic Idea Book series, is the brainchild of master builder Yoshihito Isogawa of Tokyo, Japan. Each title is filled with photos of Isogawa's unique models, all of which are designed to fire the imaginations of LEGO builders young and old.Imagine. Create. Invent. Now, what will you build?NOTE: The LEGO Technic Idea Book series uses parts from various Technic sets. If you don't have some of the pieces shown in a particular model, experiment by substituting your own parts or visit the No Starch Press website for a list of the special parts used in the book.