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 .
Analog cameras are cameras that generate a video signal in analog format. The analog signal is digitized by an image acquisition device. The video signal is based on the television standard, making analog the most common standard for representing video signals. You may have heard the term charge-coupled device (CCD), and wondered how it relates to the analog video signal.