All is Well

      Medical science is inventing a new technology everyday. Medical science has invented the new system of measuring the heart beat also. A stethoscope is the device which measures the heartbeat. Stethoscope is one of the most important devices in medical science. It was invented by a French scientist Rene Laennec in 1816. Before the invention of stethoscope, doctors used to know the heart beat by putting their ears on the patient's chest.