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.
The National Highway Traffic Safety Administration reports that in 2012, about one-third of all fatal crashes involved alcohol, and more than 10,000 people lost their lives (Injury Facts 2015). Almost 4,000 drivers were killed in crashes while under the influence of drugs other than alcohol.