Offering in his new radiocarbon method for calculating the age of organic material the time interval since the plant or the animal died , W. Libby clearly saw the limitations of the method and the conditions under which his theoretical figures would be valid:. The correctness of the method depends greatly on the condition that in the last 40 or 50 thousand years the quantity of water in the hydrosphere and carbon diluted in it has not substantially changed. The method depends also on the condition that during the same period of time the influx of cosmic rays or energy particles coming from the stars and the sun has not suffered substantial variations.
This is what my born again Christian friend tries to explain to me everytime we talk about evolution. In the past I've held my ground quite firmly on this topic, but as of recently he has made some claims from some "scientific journals" that carbon dating may not be as accurate as thought, and that it is misleading. I have a hard time believing anything he really says about this, but my question comes down to this, how accurate is carbon dating and how sure are we it works? When I was at primary school I learned that you could tell the age of a tree by counting the rings. A slightly more refined version of that lets us verify carbon dating for something like 10, years. Elite Engineer - Note that it's hard to use logic and reason to argue someone out of a position at which they arrived using neither.
Organizational Behavior An Evidence-Based Approach
This is how carbon dating works: Carbon is a naturally abundant element found in the atmosphere, in the earth, in the oceans, and in every living creature. C is by far the most common isotope, while only about one in a trillion carbon atoms is C C is produced in the upper atmosphere when nitrogen N is altered through the effects of cosmic radiation bombardment a proton is displaced by a neutron effectively changing the nitrogen atom into a carbon isotope.
Plug-in hybrid cars PHEV can use up to four times more fuel that manufacturers claim, according to new research. The study found that owners of dual power cars could be paying hundreds of more a year in fuel costs, casting doubt over their green credentials. An independent test by consumer group Which? The test looked at 22 popular models of cars, and based their findings on driving 9, miles a year.