The Zephyr unmanned aircraft flies for over 7 days (20th July 2010) The craft is powered by lithium-sulphur batteries that charge during the day sufficiently enough to maintain the craft’s altitude by night. The plane can persist over an area,… Continue Reading
This is the VOA Special English Development Report, from voaspecialenglish.com A new study in West Africa shows how farm irrigation systems powered by the sun can produce more food and money for villagers. The study in Benin found that solar-powered… Continue Reading
State Circle’s Yolanda Vazquez talks with Geoff Slevin of BP Solar about the benefits and possibilities of solar power and the revolutionary work BP performs with solar technology.