(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.
When did the U.S. Mint stop making pure silver coins? A: The U.S. Mint never made pure silver coins because 99.9 percent silver is too soft to use in circulation. Dimes, quarters and half dollars were minted with 90 percent silver content through 1964.