The simplest questions are often the best. Robert P Crease tries to answer one from a physics student in Kenya Seeking perfection Tennis balls are a low-cost way to explore simple physics concepts, ...

Growing up, we all had to do all kinds of science projects in school. For Baby Boomers, here are several classic science projects that just about everyone had to do at least once.

If your kids are home for the summer, either entirely or in amounts you didn't previously anticipate, they might be looking for something to do. Or you may be looking for something for them to do.