Good times. The best part? Pendulums are affordable (you can even DIY one!) and easy to use once you get the swing of them—literally. A pendulum is a tool typically made of a small, weighted ...

How about some simple physics to get your day started? We very much enjoyed this video, posted yesterday, of a giant outdoor DIY pendulum toy made with bowling balls. The toy even makes music ...

Breakthroughs, discoveries, and DIY tips sent every weekday ... a task that led him to invent the ballistic pendulum. This device tracks the momentum of a projectile, allowing users to calculate ...