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.
An average of one alcohol-impaired-driving fatality occurred every 53 minutes in 2011. In 2011, 9,878 people were killed in alcohol-impaired-driving crashes. These alcohol-impaired driving fatalities accounted for 31 percent of the total motor vehicle traffic fatalities in the United States. Traffic fatalities in alcohol-impaired-driving crashes decreased by 2.5 percent from 2010. In 2011, a total of 1,140 children age 14 and younger were killed in motor vehicle traffic crashes. Of those 1,140 fatalities, 181 occurred in alcohol-impaired-driving crashes.