Learn how to make a simple DIY pendulum using a ping pong ball and basic household materials. This step-by-step guide shows ...

Tessellations aren’t just eye-catching patterns—they can be used to crack complex mathematical problems. By repeatedly reflecting shapes to tile a surface, researchers uncovered a method that links ...

Exotic hypothetical particles known as axions could potentially be produced inside a nuclear reactor, something The Big Bang Theory’s Sheldon Cooper thought was impossible.