Sci/Tech
Domestic submarine achieves first in crossing Pacific to Canada
The Republic of Korea (ROK) Navy's 3,000-ton submarine Dosan Ahn Chang-ho (SS-III), which was independently designed and built with domestic technology, is the country's first submarine to cross the Pacific Ocean.
May 26, 2026
Nature You Meet in the Mountains #7
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New plasma tech cleans fruits, vegetables
Jan 02, 2014