Radiocarbon dating video

Their research shows how the Vikings' dining choices — that is, chowing down on fish — caused the earlier radiocarbon-dating blunder.[Fierce Fighters: 7 Secrets of Viking Culture] According to historical records, the Great Army spent the winter in Repton in A. 873-874 and attacked the king of Mercia, an Anglo-Saxon kingdom, sending him into exile.Now, researchers have finally gotten to the bottom of the mystery.

Curiously, a boar's tusk had been put between his legs. [Photos: 10th-Century Viking Tomb Unearthed in Denmark] "The date of the Repton charnel bones is important because we know very little about the first Viking raiders that went on to become part of [a] considerable Scandinavian settlement of England," Jarman said.

Perhaps because the injury had affected his penis or testicles, and the tusk symbolized this loss to help him prepare for the afterlife, the researchers said. "Although these new radiocarbon dates don't prove that these were Viking army members, it now seems very likely." The findings were published online today (Feb.

One is for potentially dating fossils (once-living things) using carbon-14 dating, and the other is for dating rocks and the age of the earth using uranium, potassium and other radioactive atoms.

The atomic number corresponds to the number of protons in an atom.

An “isotope” is any of several different forms of an element, each having different numbers of neutrons.

The illustration below shows the three isotopes of carbon.Atoms are made up of much smaller particles called protons, neutrons, and electrons.Protons and neutrons make up the center (nucleus) of the atom, and electrons form shells around the nucleus.Several men had signs that they sustained violent injuries before dying, the researchers said.All of these signs indicated that the grave belonged to the Great Army, but "although several samples were consistent with a ninth-century date, a number dated to the seventh and eighth centuries A.In another grave, four juveniles ages 8 to 18 were buried with a sheep jaw at their feet. It's possible these boys were sacrificed to accompany the Viking dead, which Viking texts mention as a ritual, the researchers said.

Tags: , ,