RPM is the acronym used for revolutions per minute. It measures the number of revolutions completed in one minute around a fixed axis, giving the speed of a mechanical component. It is commonly used to describe the performance of automobile engines.
Like most ballparks built from the 1990s onward, Safeco Field is a 'retro-modern' style ballpark that incorporates many of the features of ballparks built in the 1950s and earlier with modern amenities.
Safeco Field in Seattle, Washington. Safeco Field is a baseball stadium with a retractable roof, located at 1516 First Avenue S., in Seattle, Washington. The stadium is home to the major league baseball team the Seattle Mariners, and was built to replace Kingdome and Qwest Field, which is the home to the Seattle Seahawks football team.