carbon-14

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carbon-14 (¹⁴C),

a beta-emitter with a half-life of about 5700 years. It occurs naturally, arising from cosmic rays, and is used as a tracer in studying various aspects of metabolism and in dating relics that contain natural carbonaceous materials. Compare carbon-11.

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Beta radiation bile acid breath test breath test carbon carbon-11 D -xylose breath test diagnostic radiopharmaceutical nuclide Pinguecula and Pterygium Radiation Injuries triolein breath test			Goodman to date the underwater layers using two methods: carbon-14 dating and OSL (optically stimulated luminescence). Tsunami waves reasonably likely to strike Israel by Asian News International [ILLUSTRATION OMITTED] [ILLUSTRATION OMITTED] A Good Year for Dating As fortune would have it, a scientist named Willard Libby developed the carbon-14 dating method in 1949--just two years after the first scrolls were discovered. Science of the scrolls; how far-reaching technologies help ... by Kohn, Risa Levitt / ROM Magazine Carbon-14 dating placed this musical instrument and other items in the cave to between 30,000 and 37,000 years ago. Tuning into music inside our heads by Huddersfield Daily Examiner (Huddersfield, England)			carbon dioxide extraction carbon dioxide inhalation carbon dioxide narcosis carbon dioxide poisoning carbon dioxide pressure carbon dioxide response carbon dioxide retention carbon dioxide slush carbon dioxide stores carbon dioxide tension carbon dioxide therapy carbon dioxide titration curve carbon dioxide-bicarbonate buffer system carbon dioxide-oxygen therapy carbon disulfide carbon fiber carbon fiber implants carbon monoxide carbon monoxide hemoglobin carbon monoxide poisoning Carbon Tax carbon tetrachloride carbon tetrachloride poisoning carbon-11 carbon-13 carbon-14 carbon-nitrogen cycle carbonate carbonate dehydratase carbonemia carbonic acid carbonic anhydrase carbonic anhydrase inhibitor carbonic anhydrase inhibitors carbonium carbonuria carbonyl carbonyl group carbophenothion carboplatin carboprost carboprost tromethamine carboxy-lyase carboxyatractyloside carboxyfluoroquinolone carboxyhemoglobin carboxyhemoglobin test carboxyhemoglobinemia carboxyl carboxylase carboxylate			Carbon to Uranium Carbon trade Carbon trade Carbon Trade Watch Carbon trading Carbon Trading Scheme Carbon Trading Working Group carbon transducer Carbon transmitter Carbon trifluoride Carbon trifluoride Carbon Urea Breath Test Carbon Usage Effectiveness Carbon Usage Rate carbon value Carbon, Hydrogen, Nitrogen Carbon, Hydrogen, Nitrogen and Oxygen Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorous, Sulfur Carbon, Hydrogen, Nitrogen, Sulphur carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus Carbon, Hydrogen, Oxygen, Phosphorus, Nitrogen, and Sulfur carbon- carbon- Carbon-11 Carbon-12 Carbon-12 Carbon-13 Carbon-13 Carbon-13 Nuclear Magnetic Resonance carbon-14 carbon-14 dating carbon-14 dating Carbon-60 Carbon-60 carbon-arc brazing carbon-arc cutting carbon-arc lamp carbon-arc spotlight carbon-arc welding Carbon-Based Energy Company Carbon-Based Ion Optics Carbon-Based Material Carbon-boron bond Carbon-carbon Carbon-Carbon Composite Carbon-carbon double bond Carbon-carbon double bond Carbon-carbon double bond Carbon-Carbon Radiator Carbon-Cloth Phenolic Carbon-Constrained Unit Commitment carbon-copy carbon-copy carbon-copy carbon-date Carbon-dated Carbon-dated carbon-detonation supernova model carbon-dioxide laser carbon-dioxide laser

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carbon-14