Science fact - 18

Sunday, September 29, 2013
The last sunday of September is celebrated as the World Heart's Day!

On this World Heart's Day, here are some crazy facts about your heart:
  1. The size of an adult's heart is equal to two fists whereas of a kid's heart is equal to one fist.
  2. The average adult heart beats 72 times a minute; 100,000 times a day; 3,600,000 times a year; and 2.5 billion times during a lifetime.
  3. Though weighing only 11 ounces on average, a healthy heart pumps 2,000 gallons of blood through 60,000 miles of blood vessels each day. 
  4. It pumps about 1 million barrels of blood during a lifetime- enough to fill more than 3 super tankers
  5. A kitchen faucet would need to be turned on all the way for at least 45 years to equal the amount of blood pumped by the heart in an average lifetime
  6. Every day, the heart creates enough energy to drive a truck 20 miles. In a lifetime, that is equivalent to driving to the moon and back.
7. A newborn baby has about one cup of blood in circulation. An adult human has about four to five quarts which the heart pumps to all the tissues and to and from the lungs in about one minute while beating 75 times
8. The term “heartfelt” originated from Aristotle’s philosophy that the heart collected sensory input from the peripheral organs through the blood vessels. It was from those perceptions that thought and emotions arose.

9. In 1929, German surgeon Werner Forssmann (1904-1979) examined the inside of his own heart by threading a catheter into his arm vein and pushing it 20 inches and into his heart, inventing cardiac catheterization, a now common procedure.
10. “Atrium” is Latin for “entrance hall,” and “ventricle” is Latin for “little belly.”
11. The right atrium holds about 3.5 tablespoons of blood. The right ventricle holds slightly more than a quarter cup of blood. The left atrium holds the same amount of blood as the right, but its walls are three times thicker.
12. Grab a tennis ball and squeeze it tightly: that’s how hard the beating heart works to pump blood.

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