Laughing matters. It always has. But laughing may matter even more in modern times. Does anyone think that during the Middle Ages, or even in the late 19th century, ordinary citizens spent as much ...

Learn how to model and visualize geostationary orbits using GlowScript VPython. This step-by-step tutorial covers the physics, code, and visualization tips so you can build an accurate and interactive ...

Creating a home gym is a dream for many, but space is often at a premium. Between the dumbbells lying around and the yoga mat wedged under the bed, it’s hard to fit everything in without turning your ...

Trim down or bulk up, run faster, or bike farther—however you exercise, our favorite workout apps help you stay committed to physical fitness. I'm an expert in software and work-related issues, and I ...