If you don’t know the history of photography, then this might be a new concept to you. Camera Obscura, meaning darkened chamber, is a room or box where external light enters through a small hole, and is projected onto the opposing wall. This discovery is what led to the invention of photography. In the following video, the folks from National Geographic show us how to create our own room sized Camera Obscura.
Watch as National Geographic magazine staffers demonstrate how to create your own room-size camera obscura. – National Geographic