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, ...

Materials Needed: 2-quart plastic bottle, balloon, plastic tubing (3ft in length), silverware (3-4 table knives) and kitchen sink or pail. In the upper and the lower parts of the bottle, make holes in ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Do you know how to perform some simple chemistry experiments with everyday materials? If you don’t, we created a list for you to show you and help you choose your favorite one to impress your family ...