How to turn your room into camera

Hi everybody. I‘m super excited to share with you what I made. All you need is physics knoweledge about light, photography history, black tape, black sheets, trash bags and curiosity.

                                                   

We will make a Camera Obscura (The Latin name means “dark chamber"), which is ancestor of the photographic camera. 

 First, let‘s see how it works. Light travels in a straight line and when some of the rays reflected from a bright subject pass through a small hole in thin material they do not scatter but cross and reform as an upside down image on a flat surface held parallel to the hole. This law of optics was known in ancient times. The result is an inverted image of the outside scene on the opposite wall. As you can see from photoes I completely covered my window and left one small hole in it. So on the opossite wall of my room you can see the view which I usually enjoy from the window. 

            

For centuries the technique was used for viewing eclipses of the Sun without endangering the eyes and, by the 16th century, as an aid to drawing; the subject was posed outside and the image reflected on a piece of drawing paper for the artist to trace.