<http://schema.org/about>
"The design of a new type of bladeless wind turbine is claimed to be both bird- and bat-friendly, while also being inexpensive and efficient."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/wind-technology/new-bladeless-wind-turbine-design-may-keep-birds-and-bats-safe.html>