Actually the middle few are based on pre-radioactivity physics based estimates on the age of the earth based on its current temperature and known laws of thermodynamics – the geologists of the periods had physical evidence for the age of the earth that was closer to hubble than kelvin, but were poo-pooed because of Kelvin's silly theoretical workings that fluctuated wildly between a few million and few hundred million years (his first guesses were higher than his later guesses) in comparison to the few hundred billion the geologists were looking at and reporting in the fossil and geological records.
Fortunately Geologists just went "whatever" and ignored the physicists and creationists until they were proven right.
(no subject)
Date: 2011-05-12 03:37 pm (UTC)Fortunately Geologists just went "whatever" and ignored the physicists and creationists until they were proven right.