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LEDs made with rare earth metals from seabed www3.nhk.or.jp

posted by  Yubi | 1 week, 6 days ago in Science & Technology

Japanese researchers have successfully made light-emitting diodes, or LEDs, from rare earth metals found on the seabed south of the country.

The presence of mud containing the rare metals was confirmed in waters off the Pacific island of Minami-Torishima 5 years ago. The area is within Japan's exclusive economic zone.