Washington: Some beach sand minted into floppy-sized ceramic tiles, a coating of secret ink, and just about any fuel
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/bloom-power-out-boxindia-born-scientist-launches-sand-based-electricity-maker
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/electricity
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/science-and-technology