(plural paradigm shifts) 1  A radical change in thinking from an accepted point of view to a new one, necessitated when new scientific discoveries produce anomalies in the current paradigm. ( US) A radical change in thinking from an accepted point of view to a new belief.
The use of IN GOD WE TRUST has not been uninterrupted. The motto disappeared from the five-cent coin in 1883, and did not reappear until production of the Jefferson nickel began in 1938. Since 1938, all United States coins bear the inscription.
A joint inquiry by NPR's Planet Money and Investigations teams found that the coins are the wasteful byproducts of a third, failed congressional effort to get Americans to use one-dollar coins in everyday commerce. In 2005, Congress decided that a new series of dollar coins should be minted to engage the public.