Periscopes are still used today in tanks and some submarines. A simple periscope is just a long tube with a mirror at each end. British submarine technology is cutting-edge, but for a century they have relied on one piece of technology to see above the waters surface. The periscope on the left uses mirrors whereas the right uses prisms. That prevents direct line-of-sight observation from an observers current position. Lesson focuses on the many uses of periscopes and how this simple device was designed and is used in many applications. Many modern periscopes, such as those used on submarines, use digital technology in place of traditional optics.
Without fear of being seen, and are still used in the navy today alongside modern technology. A periscope is a simple devise that allows someone. Some of the widely used ndt techniques include visual, liquid penetrant, leak, magnetic particle, ultrasonic, eddy current, gamma and. Periscopes are used in submarines, tanks and also by soldiers in bunkers to see things outside. Hint a simple periscope is an optical device that is used to see objects at a. Now since, according to the laws of reflection, the angle of incidence is equal to. .