History of radioactive dating russian language dating personals
Carbon-12/14 dating: Carbon-14 atoms decay at a constant rate, because they are radioactive.
The rate of radioactive decay of a substance is defined by its half-life, that is, the time it takes for half the atoms in a radioactive isotope to decay.
Scientists can then compare the ratio of normal carbon (carbon-12) to radioactive carbon-14 to determine an approximate age of the creature by testing and analyzing its ancient, fossilized bones.
Since the half-life of carbon-14 is about 5,700 years, You've probably heard scientists talk about things that they claim are millions, if not billions, of years old, though. Carbon-14 is not the only radioactive isotope scientists can measure and use to date an artifact.
Neanderthal remains have also been found in the Middle East, North Africa, and Central Asia.
Cranial capacity equaled or surpassed that of modern humans, though their braincases were long, low, and wide and flattened behind.
They wore clothing, used fire, hunted small and medium-sized animals (like goats and small deer), and they scavenged from the kills of large carnivores.
They made and used a variety of stone tools and wooden spears.
Now lets look at Neanderthal, he was an "in-between" form of Homo-sapien - less advanced than Modern man, but more advanced than Homo-Erectus.
He inhabited much of Europe and the Mediterranean lands during the late Pleistocene Epoch, (about 100,000 to 30,000 years ago).