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.
Drunk Driving Fatalities Among Those Under 21 â National Statistics. Since the National Highway Traffic Safety Administration (NHTSA) began recording alcohol-related statistics in 1982, the number of persons under 21, killed in drunk driving crashes decreased 80% from the record high of 5,215 in 1982 to 1,031 in 2016.