A red and a blue snooker ball both have a mass of 160 g. They collide with speeds and directions as shown in this diagram. The following steps show you how to calculate the velocity of the red ball ...

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 ...

Scalar quantities have only magnitude (size). For example, 11 m and 15 m s-1 are both scalar quantities.

Google's latest doodle in India celebrates the quadratic equation, ax² + bx + c = 0, showcasing its real-world applications ...

Google first introduced this educational Doodle in the US in September and has since expanded it to multiple countries, ...

The Navier-Stokes equations describe simple, everyday phenomena, like water flowing from a garden hose, yet they provide a million-dollar mathematical challenge. Physics contains equations that ...

David Norman reviews The Physics of Birds and Birding: the Sounds, Colors and Movements of Birds, and Our Tools for Watching Them by Michael Hurben The physics of (king)fishing When kingfishers dive ...

Brian Greene: When we talk about vibration in physics, we have an interesting set of equations, mathematical equations that govern how a system vibrates. So if we have a string on a violin, we have an ...