Title: Hidden worlds
Subtitle: pictures of the invisible
Description: A collection of photographs, produced through the use of special instruments, of things that are hidden from the human eye, or are too small, too large, or moving too fast to be seen by it.
Subjects: Juvenile literature, Photography, Scientific applications, Radiography, Science, Microscopes, Methodology, Photomicrography, Telescopes, Technology, Geography, juvenile literature, Views, Mythology