<http://schema.org/about>
"One of Intel's focuses for eco-technology is increasing our ability to harvest free energy sources from the sun to kinetic energy. This also includes RF energy harvesting from sources like WiFi, cell"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/intel-demos-rf-energy-harvesting-technology.html>