Christopher Cooper

Everything you think you know about Nikola Tesla is wrong. Nikola Tesla was one of the greatest electrical inventors who ever lived. For years, the engineering genius was relegated to relative obscurity, his contributions to humanity (we are told) obscured by a number of nineteenth-century inventors and industrialists who took credit for his work or stole his patents outright. In recent years, the historical record has been "corrected" and Tesla has...

A compelling introduction to electric current, this volume investigates the conducting properties of various materials and goes on to describe ways of producing electric currents. It also describes how electricity is used in the home, in industry, and in the world of communications. Aligned to the Common Core science standards, the text explains moving charge, current and stored charge, resistance and power, direct and alternating currents, and electricity...

Page after page, this title proves that the power of attraction is undeniable. Readers move beyond a simple fascination with the power of magnets to a clear understanding of the science behind magnetics. Natural magnets, Earth's magnetic field, and the ties between electricity and magnetics are all featured, in addition to the creation and use of magnets in commercial and everyday applications. Information about the life and work of physicist Joseph...

Ticking clocks, claps of thunder, the human voice-sound is anything that can be heard. Hearing sound is one thing, but understanding just how it works and what its properties are is quite another. Answering these questions and others concerning supersonic speed and breaking the sound barrier, how the human voice and ear work, and the age-old question of whether a tree falling in the forest unobserved makes any noise, this volume provides an accessible...

Political scientist V. O. Key in 1949 described North Carolina as a "progressive plutocracy." He argued that in the areas of industrial development, public education, and race relations, North Carolina appeared progressive when compared to other southern states. Reconsidering Key's evaluation nearly sixty years later, contributors to this volume find North Carolina losing ground as a progressive leader in the South. The "new politics" of the state...

Examines the elements that make up the physical world and the properties and behavior of different kinds of matter.

"An anthology of six original Last Kids short stories, designed to bridge the gap between books 6 and 7, features contributions by prominent graphic artists and finds Jack and his friends spinning yarns about their over-the-top post-apocalyptic adventures."--Provided by publisher.