radioactive+carbon+method

См. также в других словарях:

• carbon dating — n. a method of establishing the approximate age of carbonaceous materials, such as fossil remains or archaeological specimens, by measuring the amount of radioactive carbon 14 remaining in them: also carbon 14 dating * * * …   Universalium

• carbon dating — n. a method of establishing the approximate age of carbonaceous materials, such as fossil remains or archaeological specimens, by measuring the amount of radioactive carbon 14 remaining in them: also carbon 14 dating …   English World dictionary

• Carbon-14 — Infobox isotope background = #999999 isotope name = Carbon 14 num neutrons = 8 num protons = 6 isotope filename = alternate names = radiocarbon mass number=14 abundance = 1 part per trillion symbol=C decay product = 14N halflife=5,730 error… …   Wikipedia

• carbon-14 dating — or radiocarbon dating Method of determining the age of once living material, developed by U.S. physicist Willard Libby in 1947. It depends on the decay of the radioactive isotope carbon 14 (radiocarbon) to nitrogen. All living plants and animals… …   Universalium

• carbon dating — car|bon dat|ing [ karbən ,deıtıŋ ] noun uncount a method of finding out the age of a very old object by measuring the amount of RADIOACTIVE CARBON it contains …   Usage of the words and phrases in modern English

• carbon dating — UK [ˌkɑː(r)bən ˈdeɪtɪŋ] / US [ˈkɑrbən ˌdeɪtɪŋ] noun [uncountable] a method of finding out the age of a very old object by measuring the amount of radioactive carbon it contains …   English dictionary

• radioactive dating — n [U] AmE a scientific method of calculating the age of a very old object by measuring the amount of a certain substance in it British Equivalent: carbon dating …   Dictionary of contemporary English

• Radioactive decay — For particle decay in a more general context, see Particle decay. For more information on hazards of various kinds of radiation from decay, see Ionizing radiation. Radioactive redirects here. For other uses, see Radioactive (disambiguation).… …   Wikipedia

• Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …   Wikipedia

• radioactive dating — noun (U) AmE a scientific method of calculating the age of a very old object by measuring the amount of a certain substance in it; carbon dating BrE …   Longman dictionary of contemporary English

• Historical method — The historical method comprises the techniques and guidelines by which historians use primary sources and other evidence to research and then to write history. The question of the nature, and indeed the possibility, of sound historical method is… …   Wikipedia