Most of the plumbing pipes in the United States are oversize, wasting water in a time of increasing drought. By Megy Karydes Many high-performing, water-saving fixtures and appliances are designed ...

Ordinarily, if you want liquid to flow in only one direction through a pipe, that pipe needs to be equipped with a flap-type valve – which could fail. Now, however, scientists have created a new type ...

Researchers have discovered a new way to help liquid flow in only one direction, but without using the flaps that engines and our circulatory system rely upon to prevent fluid backup. The team created ...