Radiocarbon dating also referred to as carbon dating or carbon dating is a method for determining the age of an object containing organic material by using the properties of radiocarbon , a radioactive isotope of carbon. The method was developed in the late s at the University of Chicago by Willard Libby , who received the Nobel Prize in Chemistry for his work in It is based on the fact that radiocarbon 14 C is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting 14 C combines with atmospheric oxygen to form radioactive carbon dioxide , which is incorporated into plants by photosynthesis ; animals then acquire 14 C by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and thereafter the amount of 14 C it contains begins to decrease as the 14 C undergoes radioactive decay.
Is Carbon Dating Accurate?
How far back can carbon dating be accurate
By Ian Randall For Mailonline. A revolutionary new carbon dioxide filtering device that can work on gases of any concentration could be a vital tool for combating climate change. The 'paradigm shifting' approach can capture carbon out of everything from power plant emissions to open air with concentrations of just parts per million. Existing carbon dioxide extractors have mostly only worked on the high concentrations found in power plant exhausts.
Carbon dating the Dead Sea Scrolls
Painting of a Bison c. Polychrome Animal Painting from Altamira c. Altamira Cave Paintings: A Summary. Located in northern Spain, not far from the village of Antillana del Mar in Cantabria, the Upper Paleolithic cave complex at Altamira is famous for its magnificent multi-coloured cave painting , as well as its rock engravings and drawings.
By Stacy Liberatore For Dailymail. Sauropod dinosaurs emerged in South America some million years ago, but despite living during the supercontinent Pangea it took them 15 million years to reach Greenland — when it should have taken 20 years. A team from Colombia University suggests a 'climatic phenomenon' may have allowed the enormous creatures to finally make the journey. The Earth endured a 'tremendous' dip atmospheric carbon dioxide CO2 around the time the sauropodomorphs migrated million years ago. The high CO2 conditions could have made regions above South America too dry to support the movements of the large dinosaurs, which locked them in the temperate areas.