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.
On November 9, 1953, the City of Houston purchased 10.97 acres from the Atlantic Building Corporation and Lynn Realty Company. Developed as parkland for the subdivisions being built along Bellfort Boulevard and Mykawa Road, it came to be called Edgewood Park. As with all public parks, Edgewood has seen its share of hard use as a recreational facility, and has been redeveloped periodically as a result. The community center, which was built in 1959, received a new roof in 1972.