caption: The image shows an old book with a drawing of a glass bowl and a light bulb on it. The book is open, revealing a page with diagrams and text written on it, likely related to the invention of light. The glass bowl is filled with a clear liquid, likely a light source, and the light bulb is suspended from the top of the bowl. The text on the page likely provides further information about the invention, such as its purpose and how it works.