TechnologyInvention special: Green technology This week's new patent applications aim to make the world a cleaner place: from electricity generation by osmosis, to crops that refine biofuels, and nod-powered headsets ¿ìè¶ÌÊÓÆµ
Technology'Formula Zero' kart race could drive fuel cell technology Go-karts powered by hydrogen fuel cells compete in the first 'Formula Zero' race, which may one day be a green alternative to 'Formula 1' races ¿ìè¶ÌÊÓÆµ