Jump to navigation. University of Arizona researchers have cracked one of the puzzles surrounding what has been called "the world's most mysterious manuscript" — the Voynich manuscript , a book filled with drawings and writings nobody has been able to make sense of to this day. Using radiocarbon dating, a team led by Greg Hodgins in the UA's department of physics has found the manuscript's parchment pages date back to the early 15th century, making the book a century older than scholars had previously thought. This tome makes the "DaVinci Code" look downright lackluster: Rows of text scrawled on visibly aged parchment, flowing around intricately drawn illustrations depicting plants, astronomical charts and human figures bathing in — perhaps — the fountain of youth. At first glance, the "Voynich manuscript" appears to be not unlike any other antique work of writing and drawing. An alien language.
Radiometric Age Dating
Radiometric Age Dating - Geology (U.S. National Park Service)
The age of fossils can be determined using stratigraphy, biostratigraphy, and radiocarbon dating. Paleontology seeks to map out how life evolved across geologic time. A substantial hurdle is the difficulty of working out fossil ages. There are several different methods for estimating the ages of fossils, including:. Paleontologists rely on stratigraphy to date fossils. Stratigraphy is the science of understanding the strata, or layers, that form the sedimentary record.
2. Absolute age dating
The ability to precisely date, or identify the age of an object, can teach us when Earth formed, help reveal past climates and tell us how early humans lived. So how do scientists do it? Radiocarbon dating is the most common method by far, according to experts. This method involves measuring quantities of carbon, a radioactive carbon isotope — or version of an atom with a different number of neutrons. Carbon is ubiquitous in the environment.
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.