If you want to explain what was and what is, you need particle physics. Because everything we see consists of molecules and atoms, and atoms in turn consist of atomic nuclei and electrons. The atomic ...

Math, specifically calculus, is a barrier to many natural sciences, technology and engineering fields. Physics, which is math-heavy, often proves similarly challenging to students who wish to pursue ...

Explore the fundamentals of motion with Exploring the Basics of Static and Kinetic Friction Forces in Physics. Learn how friction influences movement, the differences between static and kinetic ...

**Pre-reqs:** None. I intend to talk about forces and force diagrams, but there is a more fundamental question to address first. What is a force? Most texts define it as a push or a pull. That really ...

Visit NAP.edu/10766 to get more information about this book, to buy it in print, or to download it as a free PDF. Condensed-matter and materials physics is the branch of physics that studies the ...

A tiny, unseen force could potentially alter our basic understanding of the universe — if it really exists. Theoretical physicists at UC Irvine say they’ve found evidence for a fifth fundamental force ...