energy conversion: Steam engines. Thomas Savery, an English inventor and military engineer, studied Papinâs work and built a steam-driven suction machine for removing water from coal mines. Saveryâs machine (patented in 1698) consisted of a boiler, a closed, water-filled reservoir, and a series of valves.
How big is the problem? In 2014, 9,967 people were killed in alcohol-impaired driving crashes, accounting for nearly one-third (31%) of all traffic-related deaths in the United States.1. Of the 1,070 traffic deaths among children ages 0 to 14 years in 2014, 209 (19%) involved an alcohol-impaired driver.1.
1 About 1 in 140 drivers have been arrested for drunk driving. 2  Males between the age of 18 and 35 are the most likely to be arrested for drunk driving.  According to the CDC, an estimated 4,500 teens are killed each year in drunk driving accidents.