Money doesn’t grow on trees, but electricity might someday.

Iowa State University scientists have built a device that mimics the branches and leaves of a cottonwood tree and generates electricity when its artificial leaves sway in the wind.

Michael McCloskey, an associate professor of genetics, development and cell biology who led the design of the device, said the concept won’t replace wind turbines, but the technology could spawn a niche market for small and visually unobtrusive machines that turn wind into electricity.

Read more at Iowa State University