Verniers

"Verniers" is an educational film that employs animation to explain the principles of the Vernier scale and its practical application in precision measuring instruments. The documentary provides detailed instructions on how to use and read Vernier micrometers and calipers, making it a valuable resource for students and professionals in technical fields requiring accurate measurements. Additionally, the film features Dr. Hadley Cantril from the Perception Demonstration Center at Princeton University, who explores how human assumptions influence visual perception. This segment includes demonstrations such as a distorted room that appears normal, a rotating trapezoid that seems to oscillate, and balloons that give the illusion of movement as they are inflated and deflated under changing light conditions. These examples highlight the psychological aspects of perception, complementing the technical focus on measurement precision with insights into how we interpret what we see.