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 March 3, 1969, National Presto Industries, Inc., was admitted to the New York Stock Exchange. It was a prestigious advancement in terms of company recognition and a symbol of the integrity of its products and finances. The company's third plant was built in 1971 in Alamogordo, New Mexico.