1) GO TO A PROFESSIONAL. All piercings should be carried out by professionals â including the common ear lobe piercings â but it is especially important that cartilage piercings, and piercings on other sensitive body parts are carried out by trained professionals who do such piercings for a living.
Camera obscura is Latin for dark chamber.. It is the name given to a simple device used to produce images that would lead to the invention of photography. The English word for today's photographic devices is merely a shortening of this name to  camera .
The Camera Obscura below is is in the collection of historical apparatus of the National University of Ireland in Galway. It was used for sketching; the tracing paper was placed on the missing glass inside the folding hood, and a 45Â° mirror inside the box reflected the image onto the paper.