During my previous two posts viewers have asked about grading either because they have had difficulty with it or because they want to know how to select PCGS- or NGC-gradeworthy coins. Each denomination requires different skills. The Morgan dollar ranks among the easiest to grade because of its generous fields.
Over 1,500 Gallons of Blood Pumped Daily The heart is a powerful muscle that beats without stopping throughout a lifetime. It pumps about 55-80 ml (1/3 cup) of blood with each beat for adults and around 25-85 ml per beat for children. An adult heart pumps about 6,000-7,500 liters (1,500-2,000 gallons) of blood daily.
the human body will pump it's entire blood supply in 1 min. A good rule of thumb is 2 ounces per beat. The adult human body holds 4-6 liters of blood.