Millions of people visit xkcd.com each week to read Randall Munroe's iconic webcomic. His stick-figure drawings about science, technology, language, and love have a large and passionate following. Fans of xkcd ask Munroe a lot of strange questions. What if you tried to hit a baseball pitched at 90 percent the speed of light? How fast can you hit a speed bump while driving and live? If there was a robot apocalypse, how long would humanity last? In...

After completing the final version of his general theory of relativity in November 1915, Albert Einstein wrote a book about relativity for a popular audience. His intention was 'to give an exact insight into the theory of relativity to those readers who, from a general scientific and philosophical point of view, are interested in the theory, but who are not conversant with the mathematical apparatus of theoretical physics.' The book remains one of...

Discusses recent discoveries in physics and cosmology to explore a range of multiverse proposals, and examines how the knowledge that some aspects of reality may lie beyond human comprehension might affect scientific progress.

Presents simple illustrations of the concepts of mass, space, and black holes that make up the theory of relativity.

The Authorized Albert Einstein Archives Edition: A fascinating collection of Einstein's observations about life, religion, nationalism, and a host of personal topics that engaged the genius's intellect. In the aftermath of the First World War, Albert Einstein writes about his hopes for the League of Nations, his feelings as a German citizen about the growing anti-Semitism and nationalism of his country, and his myriad opinions about the current affairs...

"By an experimental physicist who works on the Large Hadron Collider, a mind-altering look at the foundational questions bedeviling modern physics, among them: Where does matter come from? Carl Sagan famously said, "If you wish to make an apple pie from scratch, you must first invent the universe." But what fundamental matter is the universe made of? What banged in the Big Bang? And how did that matter arise from nothing into the world we now know?...

Physics is a very important part of our everyday lives! Just go for a walk through the park you will see for yourself. From the wind that rustles the trees, to the sun that keeps us warm, to the car that drives us around and the food that gives us energy to play, physics is all around us, all the time!

The authors mix science and art together in order to explain the basic concepts of physics including the interaction of energy and matter.

This guide to the universe aims to provide a comprehensive account of our present understanding of the physical universe, and the essentials of its underlying mathematical theory. It attempts to convey an overall understanding--a feeling for the deep beauty and philosophical connotations of the subject, as well as of its intricate logical interconnections. While a work of this nature is challenging, no particular mathematical knowledge is assumed,...