An enzyme is a catalyst that helps to speed up the rate of a reaction by lowering the activation energy of a reaction. There are many enzymes in the human body, without which lots of important reactions would never take place. Cellular respiration is one example of a reaction that is catalysed by enzymes.
Sullivan Act Tim Sullivan, a major Irish criminal passed the Sullivan Act in 1911 to help his constituents rob strangers or to help them against Italian incomers. That is the crux of story that goes with a very early gun control law.
The Tariff Act of 1930 (codified at 19 U.S.C. ch. 4), otherwise known as the SmootâHawley Tariff or HawleyâSmoot Tariff, was an act sponsored by Senator Reed Smoot and Representative Willis C. Hawley and signed into law on June 17, 1930, that raised U.S. tariffs on over 20,000 imported goods to record levels.