Radiometric dating , radioactive dating or radioisotope dating is a technique which is used to date materials such as rocks or carbon , in which trace radioactive impurities were selectively incorporated when they were formed. The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay. Together with stratigraphic principles , radiometric dating methods are used in geochronology to establish the geologic time scale. By allowing the establishment of geological timescales, it provides a significant source of information about the ages of fossils and the deduced rates of evolutionary change.
The Zombie is a Tiki cocktail made of fruit juices, liqueurs , and various rums. It first appeared in late , invented by Donn Beach at his Hollywood Don the Beachcomber restaurant. Legend has it that Donn Beach originally concocted the Zombie to help a hung-over customer get through a business meeting. Its smooth, fruity taste works to conceal its extremely high alcoholic content. Don the Beachcomber restaurants limit their customers to two Zombies apiece because of their potency, which Beach said could make one "like the walking dead. According to the original recipe, the Zombie cocktail included three different kinds of rum, lime juice, falernum , Angostura bitters , Pernod , grenadine , and "Don's Mix", a combination of cinnamon syrup and grapefruit juice.