![Figure 2.1 from DESIGN AND DEVELOPMENT OF WIRELESS STETHOSCOPE WITH DATA LOGGING FUNCTIONS | Semantic Scholar Figure 2.1 from DESIGN AND DEVELOPMENT OF WIRELESS STETHOSCOPE WITH DATA LOGGING FUNCTIONS | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/19ab7d6b4686d7faf1886d1a8eb79407e34a0eff/16-Figure2.1-1.png)
Figure 2.1 from DESIGN AND DEVELOPMENT OF WIRELESS STETHOSCOPE WITH DATA LOGGING FUNCTIONS | Semantic Scholar
![FITTO Clinic on X: "In 1816 while checking a female patient, a French doctor Rene Theophile Hyacinthe Laennec rolled a sheet of paper to funnel the sound from the patient's chest to FITTO Clinic on X: "In 1816 while checking a female patient, a French doctor Rene Theophile Hyacinthe Laennec rolled a sheet of paper to funnel the sound from the patient's chest to](https://pbs.twimg.com/media/FL2wi9YX0BYGPLu.jpg:large)
FITTO Clinic on X: "In 1816 while checking a female patient, a French doctor Rene Theophile Hyacinthe Laennec rolled a sheet of paper to funnel the sound from the patient's chest to
![NABETS on X: "Over 200 years ago, in 1816, Rene Laennec invented the first stethoscope using a long, rolled paper tube to direct the sound from the patient's chest to his ear. NABETS on X: "Over 200 years ago, in 1816, Rene Laennec invented the first stethoscope using a long, rolled paper tube to direct the sound from the patient's chest to his ear.](https://pbs.twimg.com/media/F7lnNIGXwAA1-ji.jpg)