India & Vietnam seal ‘rare’ 10-yr vision statement among key defence pacts as China threat looms..

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35891nav_menu<![CDATA[primary]]><![CDATA[Primary]]> '''Carbon-14''' (¹⁴C), or '''radiocarbon''', is a [[radioactive isotope]] of [[carbon]] with an [[atomic nucleus]] containing 6 [[protons]] and 8 [[neutrons]]. Its presence in organic materials is the basis of the [[radiocarbon dating]] method pioneered by [[Willard Libby]] and colleagues (1949) to date arch