The equations that mathematicians use to study the flow of water and other fluids—which Leonhard Euler first wrote down nearly 300 years ago—look simple enough. If you know the location ... speed of ...

Have you ever wondered how airplanes, despite their massive size, manage to stay in the sky? The answer lies in aerodynamics, which explains how air interacts with moving objects to generate lift, ...

Physics can feel inscrutable to students; this lesson helps them understand a graphing problem by analyzing their own ...

A new theory claims dark matter and dark energy don’t exist — they’re just side effects of the universe’s changing forces. By ...