Written by pimpitcha
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Sunday, 10 January 2016 12:10 |
Mr. Andersen explains how carbon-14 dating can be used to date ancient material. The half-life of radioactive carbon into nitrogen is also discussed.
ที่มา : http://www.freesound.org/ ลิงค์ : https://youtu.be/2io5opwhQMQ อัพโหลดโดย : Bozeman Science
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