Sci/Tech
Domestically developed fighter KF-21 certified 'combat suitable'
The Defense Acquisition Program Administration (DAPA) on May 7 said the homegrown fighter jet KF-21 has obtained certification as "combat suitable," passing the final hurdle in system development.
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Researchers develop microscopic gas sensor
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The Dongui Bogam's View on Humanity and the Universe
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Scientists get electricity from water
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