The assumption that the attractive nuclear force is independent of the charge of the individual nucleons between which it acts is one of the fundamental tenets of nuclear structure. This assumption ...

Google's latest animated Doodle celebrates the quadratic equation, transforming its homepage into an interactive classroom.

Can you chip in? This year we’ve reached an extraordinary milestone: 1 trillion web pages preserved on the Wayback Machine. This makes us the largest public repository of internet history ever ...

Algebraic Topology is a system and strategy of partial translations, aiming to reduce difficult topological problems to algebraic facts that can be more easily solved. The main subject of this book is ...