Relying on the remarkable forces of science and nature, this material offers great ideas for performing illusions, magic tricks, and experiments.

Dozens of scientific "magic tricks" based in mathematics, chemistry, optical illusion, paper cutting, and magnetism.

Using simple scientific principles such as static electricity, temperature difference, surface, tension, and electromagnetism, Michio Goto demonstrates that science can be both amusing and amazing. 100+ photos and illustrations.

Babies can be a joy—and hard work. Now, they can also be a 50-in-1 science project kit! This fascinating and hands-on guide shows you how to re-create landmark scientific studies on cognitive, motor, language, and behavioral development—using your own bundle of joy as the research subject. Simple, engaging, and fun for both baby and parent, each project sheds light on how your baby is acquiring new skills—everything from recognizing faces, voices, and shapes to understanding new words, learning to walk, and even distinguishing between right and wrong. Whether your little research subject is a newborn, a few months old, or a toddler, these simple, surprising projects will help you see the world through your baby’s eyes—and discover ways to strengthen newly acquired skills during your everyday interactions.

Teaches readers how use simple scientific concepts to do several easy magic tricks, including ordering an egg to float and making a handkerchief waterproof.

How tech companies like Google, Airbnb, StubHub, and Facebook learn from experiments in our data-driven world—an excellent primer on experimental and behavioral economics Have you logged into Facebook recently? Searched for something on Google? Chosen a movie on Netflix? If so, you've probably been an unwitting participant in a variety of experiments—also known as randomized controlled trials—designed to test the impact of different online experiences. Once an esoteric tool for academic research, the randomized controlled trial has gone mainstream. No tech company worth its salt (or its share price) would dare make major changes to its platform without first running experiments to understand how they would influence user behavior. In this book, Michael Luca and Max Bazerman explain the importance of experiments for decision making in a data-driven world. Luca and Bazerman describe the central role experiments play in the tech sector, drawing lessons and best practices from the experiences of such companies as StubHub, Alibaba, and Uber. Successful experiments can save companies money—eBay, for example, discovered how to cut $50 million from its yearly advertising budget—or bring to light something previously ignored, as when Airbnb was forced to confront rampant discrimination by its hosts. Moving beyond tech, Luca and Bazerman consider experimenting for the social good—different ways that governments are using experiments to influence or “nudge” behavior ranging from voter apathy to school absenteeism. Experiments, they argue, are part of any leader's toolkit. With this book, readers can become part of “the experimental revolution.”

Perform Mind-Blowing Science Experiments at Home! You’ll have the time of your life conducting these incredible, wacky and fun experiments with your parents, teachers, babysitters and other adults. You’ll investigate, answer your questions and expand your knowledge using everyday household items. The Quirky Mommas from the wildly popular Kids Activities Blog and authors of the bestselling 101 Kids Activities That Are the Bestest, Funnest Ever! have done it again with this book of ridiculously amazing, simple science experiments. You can do things both indoors and outdoors. The handy mess meter, preparation times and notes on the level of supervision will keep your parents happy, and you safe. Experimenting is really fun, and you will have a blast being a scientist! You will be so entertained, you might not notice you’re also learning important things about the world around you. Some experiments to master: - Balloon-Powered Car - Burst Soap Clou - CD Hovercraft - Creeping Ink - Bendy Bones - Electromagnet - Paper Helicopters - Unbreakable Bubbles Now put on your lab coat and let’s get experimenting!

Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415]

Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59.

On a cold February morning in 1908, the ground under Coal Valley, Illinois, trembled as an earthquake opened the earth, collapsed mining tunnels, and created chasms and fissures as deep as five hundred feet below the rolling hills. It would forever be known as Coal Valleys great cave-in. Thirteen men lay trapped for three months as tensions rose among the townspeople, rescuers, and families of the trapped miners. One rescue attempt after another failed due to aftershocks, weather, and just plain bad luck. The dangers were great below ground, but the twisted minds of some of the towns inhabitants made the danger even greater at the surface. A story of adventure, suspense, greed, romance, fantasy, and redemption that will leave the reader wondering who or what was actually trapped under Coal Valley. Was it just the miners, the apparitions that they faced, or was it the underground dwellers whose intelligence was advancing at such a rapid pace that they were preparing for their place in the sun?