A Japanese university has developed crystal-filled tea bags that can purify fluoride-contaminated drinking water in Tanzania, with ambitions to tackle water contamination problems in other countries including the United States, A Japanese Olympic fencing gold medalist has spearheaded a recycling project that transforms discarded fencing swords into kitchen knives and medals, giving new life to the high-performance steel used in competition blades, Japan’s space agency JAXA is developing an ambitious solar power generation system in space that could beam clean energy down to Earth via microwaves, free from weather disruptions and without any CO2 emissions.








