As we pointed out in these two articles, radiometric dates are based on known rates of radioactivity, a phenomenon that is rooted in fundamental laws of physics and follows simple mathematical formulas.Dating schemes based on rates of radioactivity have been refined and scrutinized for several decades.Evolution only gained significant momentum after the theory of evolution, published by Charles Darwin in November 1859, implied that man was merely another product of life on earth, with origins shared by the other creatures and not its ultimate purpose. Wallace proposed the same theory at a joint presentation to the Linnaean Society in London .
The Probability of Life - Creationists have long asserted that the chances of life forming naturally are so remote that they could not have happened.
Read about how, in fact, the chances are much wider than most think.
Isotopes participate in the same chemical reactions but often at differing rates.
When isotopes are to be designated specifically, the chemical symbol is expanded to identify the mass (for example, C is not stable.
As a result it is always undergoing natural radioactive decay while the abundances of the other isotopes are unchanged.
Carbon-14 is most abundant in atmospheric carbon dioxide because it is constantly being produced by collisions between nitrogen atoms and cosmic rays at the upper limits of the atmosphere.Choose: No Frames Layout Choose: Human Evolution Frames .I have integrated this web page on human evolution into an electronic text, " Nature's Holism - Holism.There are three standard creationist responses: First, creationists assert that current rates (Y) are different than past rates.It is possible that these rates changed — but under uniformitarianism, which is necessary for science to function, we must assume that rates did not change unless there is evidence for this change.Second, creationists appeal to the Omphalos hypothesis and argue that God deceptively created the world to appear old.