UW Engineers Invent First Tree-Powered Circuit
In a first, researchers at the University of Washington in Seattle have developed a completely tree-powered electrical circuit. The nano-scale device—approximately 130 nanometers [a nanometer is one billionth of a meter] in size—consumes just 10 billionths of a watt (10 nanowatts). Unlike the legendary science fair experiment in which a … [continued]
