Physics is the study of the underlying laws and mechanisms explaining how the universe works. Most of what we do in daily life is based on a principle or law of physics—dealing with forces, motion, ...

The Big Ideas: What Is Reality? Effective theories in physics can help us measure and examine reality, despite the many things we do not yet know. By Lisa Randall Dr. Randall is a physicist. This ...

Dr. Michio Kaku, a professor of theoretical physics, answers the internet's burning questions about physics. Can Michio explain "string theory" to the layperson? What is a quark? What is the "God ...

Katy has a BA in Humanities and Philosophy, with over 20 years of experience in online and print publishing. She was named the Association of British Science Writers' Editor of the Year in 2023. The ...