Real Science Radio hosts Bob Enyart and Fred Williams re-air their classic list show for the New Years Day weekend. From opals forming in months, to man's genetic diversity in 200 generations, and with carbon 14 everywhere it's not supposed to be, scientific observations fill the guys' most traditional list challenging those who claim that the earth is millions of years old. Many of these scientific finds demand a re-evaluation of supposed billion-year ages. For the full written list, click on over to rsr.org/list.