It has been noted that if the shroud were really wrapped over a body there should be a space where the two heads meet.
It has also been noted that there is a space where the front and back of the head meet, and that what appears to be the outline of the back of the head is a water stain.
Carbon-14 is continually formed in nature by the interaction of neutrons with nitrogen-14 in the Earth’s atmosphere; the neutrons required for this reaction are produced by cosmic rays interacting with the atmosphere.
Radiocarbon present in molecules of atmospheric carbon dioxide enters the biological carbon cycle: it is absorbed from the air by green plants and then passed on to animals through the food chain.
It is also claimed that the image is not a painting but a miraculously transposed image.
Skeptics believe that the shroud of Turin is just another religious relic invented to beef up the pilgrimage business or impress infidels.
"All empirical evidence and logical reasoning concerning the shroud of Turin will lead any objective, rational person to the firm conclusion that the shroud is an artifact created by an artist in the fourteenth-century."The "shroud" of Turin is a woven cloth about 14 feet long and 3.5 feet wide with an image of a man on it.
It is claimed that the cloth has some pollen grains and images on it that are of plants found only in the Dead Sea region of Israel.For example, it is claimed to be the negative image of a crucifixion victim.It is claimed to be the image of a man brutally beaten in a way which corresponds to the way Jesus is thought to have been treated.It is claimed that there is type AB blood on the shroud. Blood has not been identified on the shroud directly, but it has been identified on sticky tape that was used to lift fibrils from the shroud. Other tests by Adler and Heller have identified it as blood.* If it is blood, it could be the blood of some 14th century person.It could be the blood of someone wrapped in the shroud, or the blood of the creator of the shroud, or of anyone who has ever handled the shroud, or of anyone who handled the sticky tape.