Researchers have developed two unique energy-efficient and cost-effective systems that use urea found in urine and wastewater ...

Unlike traditional water heaters that waste energy by heating more water than you need, Mixergy's tanks use a clever top-down ...

An edible robot leverages a combination of biodegradable fuel and surface tension to zip around the water's surface, creating a safe -- and nutritious -- alternative to environmental monitoring ...

Engineers have invented a sponge-like device that captures water from thin air and then releases it in a cup using the sun's energy, even in low humidity where other technologies such as fog ...