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barry barry
wrote...
Posts: 11630
10 years ago
What is the ultimate source for naturally occurring Carbon-14?
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wrote...
Valued Member
10 years ago
Cosmic ray collisions and neutron capture involving Nitrogen.
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barry Authorbarry
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Posts: 11630
10 years ago
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wrote...
Valued Member
9 years ago
No worries, barry Slight Smile
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