Turn your room into a Camera Obscura!

What is a Camera Obscura? 

Camera Obscura (from latin, meaning “darkened room”) is an optical device that was used by artists to make sketches in the field and by astronomers so that they could study eclipses without looking directly into the sun around the 19th century. A Camera Obscura is the natural optical phenomenon that occurs when an image of a scene is projected through a small pin hole in a darkened room as a reversed and upside down image on the walls. The invention of the first camera obscura (or pinhole camera) was significant in the history of optics and photography.