| Title | Burning glasses |
| Caption | This painting shows Pope Leo X using a magnifying glass to read the Bible. Burning glasses refer to magnifying lenses. |
| Source | Raphael "Portrait of Pope Leo X with two cardinals", 1517 |
| Date | 1517 |
| URL | http://www.palacegallery.net/mirrors.htm |
| Creator | Raphael |
| Type | Painting |
| Origin | Internet |
Burning glasses – Listed among the amazing tools that the Native Americans don’t understand, this phrase means a lens for focusing light to cause combustion. - Matt