Henry Carter Hull

Did you know that President Thomas Jefferson used a copier? Or that one of the world's fastest computers is the size of a two-story house? Get ready to learn the strange stories behind technology inventions you use every day. From the teenager who first imagined the television to a $900 smartphone named Simon, you'll find out how we got the technological wonders that help us connect, create, and keep up.

From compounds to chemical reactions, readers will learn all about elements, their properties, and how they react with other elements in this stunning book that features colorful images and intriguing facts! Ionic bonds, chemical bonds, the Periodic Table of Elements, mixtures, and solutions are some of the topics that are discussed. The accessible glossary and index gives readers the tools they need to better understand the content, while a fascinating...

Join A.J., the Mütter Museum's junior guide, on a tour of the world's best-known medical museum. A.J. will take you on a fun and educational adventure through the Mütter's amazing collection of unique medical specimens and objects. Accompanied by playful illustrations, this look at medical marvels and mysteries will enthrall and inform science lovers of all ages. A.J. has all of your questions covered; from the height of the Giant to the length...

This informative book explores the collecting and analyzing data step of the scientific method. Readers will learn precisely what data is and how to understand it in simple, straightforward language. With concrete examples of discoveries made by real-life scientists, this book makes a case for how important data and the ability to analyze it truly is. This book also provides accessible experiments that readers can do at home to foster a greater understanding...

EROSION: How Hugh Bennett Saved America's Soil and Ended the Dust Bowl When the dust storms of the 1930s threatened to destroy U.S. farming and agriculture, Hugh Bennett knew what to do. For decades, he had studied the soils in every state, creating maps showing soil composition nationwide. He knew what should be grown in each area, and how to manage the land to conserve the soil. He knew what to do for weathering and erosion. To do that, he needed...

From the first cells to the appearance of humans on Earth, here is the great history of evolution in a single illustrated book. The most-recent scientific information is made available to young readers through simple prose, with many anecdotes and concrete examples given by this team of three authors: a journalist, a specialist researcher, and a designer illustrator. From chapter to chapter, the reader understands that each part of his body comes...

Expanding on our popular Let's Explore Science series, this book focuses on Hypothesis, Theory, and Law. All three of these are important in the process of scientific inquiry, which is the way scientists study the natural world. As they explore, they develop explanations based on what they learn from their work. By forming a hypothesis, testing and evaluating theories, and describing the laws that exist in chemistry and physics, students will learn...

Learn How Models Extend Understanding Of Scientific Concepts And Enhance Presentations.

Retells the story of Draco the dragon and Hercules, discusses the astronomical features of the constellation Draco, and describes the history of the constellation and its myths in world culture. Since ancient times, people of all ages have gazed up at the stars in wonder. Ancient peoples created fascinating stories about the shapes they saw in the stars. With eye-catching graphics and engaging text, the Constellations series explores popular star...

The method by which people can organize events in everyday life-from past to present to future-is known as time. But the nature of time, and whether it exists at all, has fascinated scientists and philosophers for millennia. Scholars have struggled to find the key that will unlock the secrets of time. This book takes a detailed look at the scientific quest for a greater understanding of time and its complex role in the Universe.