Today's Fun Fact:
The stethoscope was invented in 1816 when a young French physician named Rene Theophile Hyacinthe Laennec was examining a young female patient. Laennec was embarrassed to place his ear to her chest (so called "Immediate Auscultation"), as was the method of the time. He remembered a trick he learned as a child that sound travels through solids, and thus he rolled up 24 sheets of paper, placed one end to his ear and the other end to the woman's chest. He was delighted to discover that the sounds were not only conveyed through the paper, but they were also louder and more clear.
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