47-year-old Japanese climber Dai Koyamada has made the first ascent of Okuro, an 8C boulder problem at Gifu in Japan. Despite his 47 years of age Dai Koyamada shows no sign of letting up, on the ...
Nuclear power generation capable of creating a large amount of energy is a relationship that can not be separated from the difficulty of control and waste disposal. From the viewpoint of how to ...
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