作者: Erik Gregersen

Space travel is a familiar concept. Such was not the case in the early 20th century, when the United States and the former Soviet Union were locked in a race to send humans into orbit. This book deta …

The planets closest to the Sun-Mercury, Venus, Earth, and Mars-include the world we know and its closest neighbors. However, despite our proximity, these rocky, silicate-based planets still represent …

Beyond Earth’s small, red neighbor Mars lie the gaseous, giant planets of the Outer Solar System. This book investigates these behemoths and dwarf planet Pluto, as well as other curiosities within th …

Satellites and robotic spacecraft have long travelled where humankind cannot, or dare not, go. By delving into the pages of this book, readers will learn about the technology, people, and organizatio …

The Sun is merely one of some 200 billion stars that make up the Milky Way–and the Milky Way is only one of a billion galaxies in the known universe. Packed with fascinating facts and stunning photo …

The night sky is positively teeming with wonders, from star clusters and nebulae to quasars. Astronomy is the means by which these and other similar phenomena are discovered and observed. This stella …

The universe has been both a subject of study and supplier of fresh mysteries. This book tackles a topic that is infinitely broad with extreme precision and careful organization, bringing the far rea …

The dynamism of the natural world means that it is constantly changing, sometimes rapidly, sometimes gradually. By mathematically interpreting the continuous change that characterizes so many natural …

The field of mathematics today represents an ongoing global effort, spanning both countries and centuries. Through this in-depth narrative, students will learn how major mathematical concepts were fi …

By observing patterns and repeated behaviors, mathematicians have devised calculations to significantly reduce human potential for error. This volume introduces the historical and mathematical basis …

Audio and visual cues facilitate some of our most powerful sensory experiences and embed themselves deeply into our memories and subconscious. Sound and light waves interact with our ears and eyes-ou …

From our television sets to the magnets that dot our refrigerators, electricity and magnetism are ever-present in our everyday lives. Even aside from our modern technology, electrical charges can be …

Many of the world’s most common processes and interactions are governed by the laws of thermodynamics and mechanics. While the transfer, release, or absorption of heat often accompany chemical reacti …

The study of matter is the study of all material things, as well as their ability to transform from one state to another. All matter assumes one of several basic states-solid, liquid, gas, and plasma …

While the atom is universally acknowledged as the basis for most branches of physics, the study of its constituent particles has illuminated significant new areas of research. The behavior of subatom …

The oft-referenced "E = mc2" may perhaps be one of the world’s most famous equations, but it actually represents only one aspect of the complex branch of physics known as relativity. Togeth …

Common to all matter and its smallest and most fundamental unit, the atom determines the properties of a substance and how it responds to other materials and stimuli. Dividing the atom further reveal …

While the wheel itself has changed little over time, it has immeasurably altered the nature of transportation. This insightful volume examines the various wheeled conveyances that have been instrumen …