Word: carbonization
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...artifacts from Monte Verde have now been subjected to dozens of radiocarbon analyses -- a standard archaeological dating technique in which the amount of radioactive carbon in an organic specimen is used to calculate its age. Dillehay says he is "very confident" that he has found remnants of a culture that existed some 125 centuries...
...world, accounting for as much as 15% of U.S. sales. There is also the undeniable fact that Americans, particularly in the more polluted and congested urban areas, are driving themselves to death. As much as 80% of all urban smog and a quarter of the nation's total carbon dioxide are caused by engines burning fossil fuels...
...expected to keep on climbing. Champion athlete, top-ranking student, Rhodes scholar, subject of a Life magazine piece, he was discussed seriously as a potential candidate for the presidency. Forty years later, after a life of obscurity and pain, the golden boy sat back in a car and inhaled carbon monoxide until his heart stopped...
...dense clouds of gas that drift between the stars. Warmed by stellar radiation, chemicals within the clouds emit ultrafaint light, a different sort for each kind of molecule. Observers have already used telescopes to identify the light from such substances as alcohol and formaldehyde. Now comes evidence of pure carbon in the crystalline form familiar to jewelers everywhere. Elizabeth Taylor needn't get excited: these diamonds are microscopic in size. While such "microdiamonds" have been found in meteorites, no one realized how abundant they apparently are in the vastness of space...
After the sedimentation process, water is strained through a filter basin containing and mixed with a carbon compound...