(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.
With the Mint Act of 1853, all US Silver coins, except for the US Silver Dollar and new 3 cent coin, were reduced by 6.9% as of weight with arrows on the date to denote reduction. The US Silver Dollar was continued to be minted in very small numbers mainly as a foreign trade to the Orient.