PhotoNet is an online database containing thousands of images from the Archives' collection of visual material.
This online database of over 3,000 images from the California Institute of Technology's archive of visual materials illustrates the history of science from the Scientific Revolution to the present. Photographs, fine prints, book illustrations, paintings, and architectural drawings of various scientists and their projects, including Leonardo da Vinci, Albert Einstein, George Ellery Hale, and Linus Pauling are found in the database. Images are accompanied by a brief (roughly 150-word) biography and, in many cases, a photograph or other image of the scientist(s) involved in the project. The site can be browsed through two sub-categories, "Science and Technological artifacts" and "Rare Books," as well as a keyword search by scientist name or subject. This site provides an ideal tool for research on the history of science and prominent scientific figures.

