How to Stop Lying to Ourselves: A Call for Self-Awareness

It was September of 1816 and two Parisian boys were playing in the courtyard of the Louvre, the famous museum in Paris.

On the other side of the courtyard, a physician named René Laennec began to quicken his pace as he walked along in the morning sun. There was a woman with heart disease waiting for him at the hospital and Laennec was late.

As Laennec crossed the courtyard, he looked toward the two boys. One of them was tapping the end of a long wooden plank with a pin. On the other end, his playmate was crouched down with his ear pressed against the edge of the plank.

Laennec was immediately struck with a thought. “I recalled a well-known acoustic phenomenon,” he would later write. “If you place your ear against one end of a wood beam the scratch of a pin at the other end is distinctly audible. It occurred to me that this physical property might serve a useful purpose in the case I was dealing with.”

When Laennec arrived at the hospital later that morning, he immediately asked for a piece of paper. He rolled it up and placed the tube against his patient’s chest. He was stunned by what he heard next. “I was surprised and elated to be able to hear the beating of her heart with far greater clearness than I ever had with direct application of my ear,” he said.

https://moonlight20.hatenablog.com/entry/2020/09/22/085652
https://www.topfind88.com/post/250700/hfghgfhgfhfghfgh
https://www.page2share.com/page/243961/gdgfdgdfgdfgdfgdfg
https://www.posts123.com/post/250701/jghjhgjghjg
http://officialguccimane.ning.com/profiles/blogs/ghjghjgfjgfjgjjg
http://www.onfeetnation.com/profiles/blogs/ghghjghjgfjfgjgj
https://note.com/_8445/n/n786ebba51fe1
https://paiza.io/projects/ccflUSIBi-KQ5nrVkaL-7A
http://allabouturanch.com/profiles/blogs/gfhgfhfghgfhfghfhf
https://pastebin.com/iPxp20ex
https://www.peeranswer.com/question/5f693d71be940c6f6e16a355
http://facebookhitlist.com/profiles/blogs/jgfjghjghfjgj
http://network-marketing.ning.com/profiles/blogs/ghghgfhfgh
https://www.mydigoo.com/forums-topicdetail-168270.html
https://henata4life.substack.com/p/hgfdhfghfghfgh
https://justpaste.it/1tisx
http://www.raptorfind.com/link/591751/https-www-umass-edu-facforms-sites-default-files-webform-j3ng4-e2-80-8bfortnite-e2-80-8b-v-bucks-hack-fortnite-free-vbucks-generator-2020-no-verification-503_0-pdf
http://zacriley.ning.com/profiles/blogs/gdfgdfgdfgdfgdfg
http://recampus.ning.com/profiles/blogs/hfghhfghgfhfghf
http://www.myfolio.com/art/wnh8feogru

René Laennec had just invented the stethoscope.

Laennec quickly upgraded from his piece of paper and, after experimenting with various sizes, he began using a hollow wood tube about 3.5 centimeters in diameter and 25 centimeters long.