In this video, we derive the catenary curve using physics and calculus, explaining how a hanging cable reaches equilibrium under gravity. Step-by-step reasoning connects forces, differential equations ...

Lowry Kirkby reviews The Theoretical Minimum: What You Need to Know to Start Doing Physics by Leonard Susskind and George Hrabovsky Thirst for physics: Leonard Susskind's popular series of lectures ...

In this video, we explain the capstan equation and how friction affects a rope or string wrapped around a surface. You’ll learn where the equation comes from, what each term means, and how it’s ...

The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

One of the greatest mysteries in physics could be solved by a mattress-like axion field that permeates space and time. Three physicists who have been collaborating in the San Francisco Bay Area over ...

Maxwell’s equations of electromagnetism and the Euler equation top a poll to find the greatest equations of all time. Robert P Crease discusses the results of his reader survey First among equals – ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...