One of the first things we learn about computers is the concept of binary ones and zeroes. When we dig into implementation of digital logic, we start to learn about voltages, and currents, and other ...

Today's computers can short out if liquid enters their innards, but water droplets could form the basis for tomorrow's electricity-free computing devices. The idea of turning water droplets into ...

A biological computer controlled by DNA offers a cheap and simple way to test the concentration of contaminants in drinking water. And experiments show that logical operations borrowed from computer ...