Democratic Sentinel, Volume 21, Number 47, Rensselaer, Jasper County, 19 November 1897 — Power of the Heart. [ARTICLE]

Power of the Heart.

Tliq human heart is practically a force pump about six inches in length and four inches in diameter. lit beats seventy times per minute, 4,200 per hour, 100,800 time's per day, and 80,792,000 times per year, and 2,575,440,000 times in seventy years, which is man’s appointed three score years and ten.” At each of these beats it forces 2(4 ounces of blood through tlie sywtem, 175 ounces per minute, 050(4 pounds per hour, or 7.03 tons per day. All tlie blood in the laxly, which is alstut 30 pounds, pAsses through tlie heart every three minutes. The little organ pumps every day what is equal to lifting 122 tons one foot high or one ton 122 feet high—that is one ton to the top of a forty-yard mill chimney. During tlie seventy years of a man’s life this marvelous pump, without a single moment’s rest, night or day, discharges the enormous quantity of 178,850 tons of human blood.