Classical Physics

Relativity's validity hinges on the velocity of light being invariant—meaning it never shifts. This self-narrated audiobook argues that it does—and presents monumental consequences of that reality. As Einstein himself said, "If the velocity of light is even a little bit dependent upon the velocity of the light source, then my entire theory of Relativity and theory of Gravitation is false." LIGHT takes Einstein's quote and 1913 acknowledgment of this Achilles' heel seriously—and demolishes the cornerstone of relativity's entire edifice—and with it, much of QED.

Aristotle considers ‘the principles and causes of change, or movement’ behind both animate and inanimate things. It is philosophy, not science, but over centuries affected the views of those involved in the ‘natural sciences’. The text emerged from the Lyceum, the school founded by Aristotle, and is accepted to be a compilation of texts, some of which - but perhaps not all - is by Aristotle. Regardless of authorship, its importance is unquestioned.

Number theory is the branch of mathematics that is primarily concerned with the counting numbers. Of particular importance are the prime numbers, the "building blocks" of our number system. The subject is an old one, dating back over two millennia to the ancient Greeks, and for many years has been studied for its intrinsic beauty and elegance, not least because several of its challenges are so easy to state that everyone can understand them, and yet no one has ever been able to resolve them. But number theory has also recently become of great practical importance.