The Practical World of Optical Illusions
A picture may be worth a thousand words, but the perception of the viewer matters. Optical illusions focus on the science of optics, which is concerned with both physical and psychological perceptions of light. Far from being just a game or a party trick, however, optical illusions play an important role in a number of professional fields, including dentistry, entertainment and computer programming and security. Let’s start with false teeth. Historically, dentures have been made of a variety of materials, such as bone, metal, porcelain and other people’s teeth. Today, however, many dental implants, bridges and other devices are made of resin, a sturdy substance which can be colored and molded to fit the needs of the patient. However, commercially … Continued