Was there a beginning of time? Could time run backwards? Is the universe infinite, or does it have boundaries? These are just some of the questions considered in an internationally acclaimed masterpiece by one of the world's greatest thinkers. It begins by reviewing the great theories of the cosmos, from Newton to Einstein, before delving into the secrets which still lie at the heart of space and time, from the big bang to black holes, via spiral galaxies and strong theory.

Seeking to uncover the holy grail of science, the elusive Theory of Everything that lies at the heart of the cosmos, Professor Stephen Hawking takes us to the cutting edge of theoretical physics. In a realm where truth is often stranger than fiction, he explains in layman's terms the principles that control our universe.

In this groundbreaking new work, Professor Hawking and renowned science writer Leonard Mlodinow have drawn on 40 years of Hawking's own research and a recent series of extraordinary astronomical observations and theoretical breakthroughs to reveal an original and controversial theory.

The final book from Professor Stephen Hawking, the best-selling author of A Brief History of Time and arguably the most famous scientist of our age, Brief Answers to the Big Questions is a profound, accessible and timely reflection on the biggest questions in science. Professor Hawking was a brilliant theoretical physicist, an influential author and thinker and a great popular communicator. Throughout his career he was asked questions by business leaders, politicians, entrepreneurs, academics and the general public on a broad range of subjects, from the origins of the universe to the future of the planet.

How can we make intelligent decisions about our increasingly technology-driven lives if we don’t understand the difference between the myths of pseudoscience and the testable hypotheses of science? Pulitzer Prize-winning author and distinguished astronomer Carl Sagan argues that scientific thinking is critical not only to the pursuit of truth but to the very well-being of our democratic institutions.

Grasp the important ideas that have served as the backbone of philosophy across the ages with this extraordinary 60-lecture series. This is your opportunity to explore the enormous range of philosophical perspectives and ponder the most important and enduring of human questions-without spending your life poring over dense philosophical texts.

At the end of his career, Albert Einstein was pursuing a dream far more ambitious than the theory of relativity. He was trying to find an equation that explained all physical reality - a theory of everything. Experimental physicist and award-winning educator Dr. Don Lincoln takes you on this exciting journey in The Theory of Everything: The Quest to Explain All Reality. Suitable for the intellectually curious at all levels and assuming no background beyond basic high-school math, these 24 half-hour lectures cover recent developments at the forefront of particle physics and cosmology.

The construction of the great pyramids of Egypt, the development of democracy in ancient Greece, the glories of ancient Rome-these stories are familiar to students of history. But what about the rest of the world? How do the histories of China and Japan, or Russia, India, and the remote territories of Sub-Saharan Africa and South America fit in with commonly known accounts of Western traditions?Learn the rest of the story with these 36 riveting lectures that survey the expanse of human development and civilization across the globe.

Professor Connel Fullenkamp of Duke University guides listeners through four centuries of economic disasters - from tulip mania in the 1600s to the Great Recession of 2007-2009. Each of his 24 lectures covers a notable incident of financial misfortune or folly that is worthy of a Hollywood thriller.  

E=mc2: It may be Einstein’s most well-known contribution to modern science, but how many people understand the thought process or physics behind this famous equation? In this collection of his seven most important essays on physics, Einstein guides the listener step-by-step through the many layers of scientific theory that formed a starting point for his discoveries.

"It doesn't take an Einstein to understand modern physics," says Professor Wolfson at the outset of these 24 lectures on what may be the most important subjects in the universe: relativity and quantum physics. Both have reputations for complexity. But the basic ideas behind them are, in fact, simple and comprehensible by anyone. These dynamic and illuminating lectures begin with a brief overview of theories of physical reality starting with Aristotle and culminating in Newtonian or "classical" physics.

Known as ‘The Father of Science Fiction’, Herbert George Wells’ writing career spanned over 60 years. He was a writer of novels, short stories, nonfiction books and articles. As a young man, Wells won a scholarship to the Normal School of Science in London, sparking his infamous vocation as a science fiction writer. Introduced by film director and H. G. Wells fanboy Eli Roth, this collection features unabridged recordings of the novels performed by Hugh Bonneville, Jason Isaacs, Sophie Okonedo, David Tennant and Alexander Vlahos.  

In this 12-lecture meditation on Aristotle's Nicomachean Ethics, you'll uncover the clarity and ethical wisdom of one of humanity's greatest minds. Father Koterski shows how and why this great philosopher can help you deepen and improve your own thinking on questions of morality and leading the best life. The aim of these lectures is to provide you with a clear and thoughtful introduction to Aristotle as a moral philosopher.

This is the story of a quest: to find a Theory of Everything. Einstein dedicated his life to seeking this elusive Holy Grail, a single, revolutionary 'god equation' which would tie all the forces in the universe together, yet never found it. Some of the greatest minds in physics took up the search, from Stephen Hawking to Brian Greene. None have yet succeeded. In The God Equation, renowned theoretical physicist Michio Kaku takes the listener on a mind-bending ride through the twists and turns of this epic journey: a mystery that has fascinated him for most of his life. 

Today we are blessed with two extraordinarily successful theories of physics. The first is Albert Einstein's general theory of relativity, which describes the large-scale behavior of matter in a curved spacetime. The second is quantum mechanics. This theory describes the properties and behavior of matter and radiation at their smallest scales.