Why Saying 'Boogie' Is Not 'Rad' Anymore

The popularity of a word tends to oscillate over 14 year periods, according to scientists who analyzed data obtained from millions of books. Most people who live very long come to see that some words become popular and then fall out of use again. Words such as “rad” or “boogie” that come into existence during certain periods might disappear, never to be heard again. However, most common nouns tend to have a cyclical popularity, the researchers said. They are yet to understand why this cycle repeats over 14 year periods. Researchers from University of Manchester, UK, and National Council for Scientific and Technical Research, Argentina, wrote scripts that were used to dig through almost five million books digitized and stored in a Google database. The scripts counted every noun encountered, which allowed the users to rank them by popularity year by year. While tracking how the rankings changed over time, they found a pattern, ‘Phys.org’ reported. Some groups of nouns, such as those that referenced royalty, tended to rise and fall together in synced cycles. Other cycles tended to be connected with worldwide events such as wars or the Olympics, the researchers said.