There was a segment on a cable TV show about the invention of the stethoscope.

This is from wikipedia; you might enjoy the rest of the article.

The stethoscope was invented in France in 1816 by René Laennec at the Necker-Enfants Malades Hospital in … Read more

Or you can look here:

http://science.howstuffworks.com/innovation/everyday-innovations/stethoscopes.htm

I worked in that field for almost 35 years and raised a family with what I made. I eventually bought my own shop that had mechanics, auto body and paint, restorations and custom graphics. I always enjoyed it and liked seeing the customers smiles when they got their vehicle back looking brand new again ! … Read more

I worked in that field for almost 35 years and raised a family with what I made. I eventually bought my own shop that had mechanics, auto body and paint, restorations and custom graphics. I always enjoyed it and liked seeing the customers smiles when they got their vehicle back looking brand new again ! … Read more