An electrocardiogram (EKG or ECG) is a test that checks for problems with the electrical activity of your heart. An EKG shows the heart's electrical activity as line tracings on paper. The spikes and dips in the tracings are called waves. The heart is a muscular pump made up of four chambers .
In the official rules for Major League Baseball, it is stated that the outfield fence should be at least 250 feet from home plate. A distance of 325 feet or more along the foul lines and 400 feet or more to center field has since become mandatory for any new stadiums.
The dimensions of a regulation NFL football field are listed below. Overall Dimensions. All football fields share the same overall outside dimensions. The outside measurements below include the End Zone. High School, College and the NFL all have overall outside dimensions of: Length: 360 feet or 120 yards. Width: 160 feet or 53 1/3 yards. End Zone: