James and John Ritty patented the design on November 4, 1879, as “Cash Register and Indicator.” This was not the first cash register on the market, as indicated by the patent, which describes it as “Improvement in cash register and indicator.“ The Rittys opened a small factory in Dayton to manufacture cash registers while still operating…
Albert Einstein was born 14 March 1879 in Ulm Germany. He was a German-born theoretical physicist who is widely held as one of the most influential scientists. Best known for developing the theory of relativity, Einstein also made important contributions to quantum mechanics. His mass–energy equivalence formula E = mc2, which arises from special…