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.
There were 11,041 alcohol-related crashes in 2013. Drunk driving accidents resulted in 381 deaths. 7,900 injuries from alcohol-related crashes. 4.1 drunk driving crashes per 100,000 licensed drivers. 3 out 4 drunk drivers were male. 19% of driver deaths for 16-20 year olds were alcohol-related.