This lesson simulates radioactive decay to develop the understanding of what we mean by halflife.
Decay amp half life why is this chapter on halflife being presented the purpose of this chapter is to explain the process of radioactive decay and its relationship to the concept of halflife.
radiocarbon dating also referred to as carbon dating or carbon14 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 1940s by willard libby who received the nobel prize in chemistry for his work in 1960 it is based on the fact that radiocarbon 14.
How do we know how old a fossil is we use carbon as every living being has carbon carbon dating also known as radiocarbon dating is a method of estimating the age of carbonbearing materials up to 60000 years old.
Professional geologist tom bailleul takes a second look at gentrys claimed polonium haloes arguing that there is no good evidence they are the result of polonium decay as opposed to any other radioactive isotope or even that they are caused by radioactivity at all gentry is taken to task for selective use of evidence faulty experiment design mistakes in geology and physics and.
Carbon dating is used to determine the age of biological artifacts up to 50000 years old this technique is widely used on recent artifacts but educators and students alike should note that this technique will not work on older fossils like those of the dinosaurs alleged to be millions of years old.
Heroes and villains a little light reading here you will find a brief history of technology initially inspired by the development of batteries it covers technology in general and includes some interesting little known or long forgotten facts as well as a few myths about the development of technology the science behind it the context in which it occurred and the deeds of the many.
Radiometric dating he question of the ages of the earth and its rock formations and features has fascinated philosophers theologians and scientists for centuries primarily because the answers put our lives in temporal perspective.
In 1896 a french physicist named henri becquerel discovered radioactivity in an element called uranium he saw that it underwent radioactive decay or emission of energetic particles to produce.