![Engines of Our Ingenuity show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/068/560/small/engines-of-our-ingenuity-houston-public-media.png)
Summary: <p>Episode: 1386 Benjamin Franklin invents the glass armonica -- no mouth organ, this. Today, singing wine glasses.</p>
Summary: <p>Episode: 1386 Benjamin Franklin invents the glass armonica -- no mouth organ, this. Today, singing wine glasses.</p>