“This eloquent, elegant book thoughtfully plumbs the . . . consequences of our dependence on plastics” (The Boston Globe, A Best Nonfiction Book of 2011).
 
From pacemakers to disposable bags, plastic built the modern world. But a century into our love affair, we’re starting to realize it’s not such a healthy relationship. As journalist Susan Freinkel points out in this eye-opening book,...

Clear, lively style covers all basics of theory and application, including mathematical models, elementary concepts of graph theory, transportation problems, connection problems, party problems, diagraphs and mathematical models, games and puzzles, graphs and social psychology, planar graphs and coloring problems, and graphs and other mathematics.

Classic work, newly enlarged, provides excellent introduction to the basic concepts and terminology of symmetry, with lucid discussions of geometric symmetry, other symmetries and approximate symmetry, symmetry in nature, uses of symmetry in science, much more. Solutions to problems. Expanded bibliography. 1975 edition.

A pop science look at time travel technology, from Einstein to Ronald Mallett to present day experiments. Forget fiction: time travel is real. In How to Build a Time Machine, Brian Clegg provides an understanding of what time is and how it can be manipulated. He explores the fascinating world of physics and the remarkable possibilities of real time travel that emerge from quantum entanglement, superluminal speeds, neutron star cylinders and wormholes...

This book develops methods of computing astronomical phenomena from basic ideas. The position of a celestial body is defined by a vector, with components referred to a system of coordinate axes. The relations between various systems in regular use by astronomers are described. In cases where two systems differ in spatial orientation, they are related by a rotation matrix. These matrices are discussed in considerable detail in the mathematical notes....

En todo el mundo existe una gran demanda de agua potable y, de la cantidad total de agua disponible, solo 2.5% es agua dulce. En este libro practicars la construccin de un destilador solar con el cual obtendrs agua potable del agua salada.

Tesla says the orthodox Herzian radio theory we've been taught is a fiction. He insists that the amount of energy that can be transmitted is "billions of times greater" than conventional radio would allow. "I gave the world a wireless system of potentialities far beyond anything before conceived... transmission absolutely unlimited as to terrestrial distance and amount of energy." Can we transmit electric power without wires? Can the unsightly and...

Nikola Tesla dreamed of a wireless future. In this fully illustrated volume, we have collected fifteen of his essays having to do with wireless. These include the "True Wireless," "Tesla's Wireless Light," "The Transmission of Electrical Energy Without Wires," "The Future of the Wireless Art," "Nikola Tesla Sees A Wireless Vision," and many others. Nikola Tesla has been, called the most important man of the 20th-Century. Without Tesla's groundbreaking...

This book is written for beginners and students who wish to learn MATLAB. One of the objectives of writing this book is to introduce MATLAB to students in high schools. The material presented is very easy and simple to understand - written in a gentle manner. The topics covered in the book include arithmetic operations, variables, mathematical functions, complex numbers, vectors, matrices, programming, graphs, solving equations, and an introduction...

Scientists now warn that Covid-19 will only be the first of many modern pandemics. The subject of infection and how to fight it grows more urgent every day. How do pathogens cause disease? And, what tools can we give our bodies to do battle? Dr. John Tregoning has dedicated his career to answering these questions. Infectious uncovers fascinating success stories in immunology and virology, making this book not only a vital overview of infection, but...