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.
Much of the credit for this headway can be given to the organization Mothers Against Drunk Drivers (MADD). But now that progress has slowed. Government drinking and driving statistics show that there were about 600 more deaths in 2003 than 1999, when a record-low 16,572 were killed in alcohol-related crashes.