Photo: A convex lens makes light rays converge (come together) at the focal point or focus. The distance from the center of the lens to the focal point is the focal length of the lens. Convex lenses are used in things like telescopes and binoculars to bring distant light rays to a focus in your eyes.
Ben Roethlisberger Compared To My 5ft 10in (177cm) Height. Ben Roethlisberger's height is 6ft 5in or 196cm while I am 5ft 10in or 177cm. I am shorter compared to him. To find out how much shorter I am, we would have to subtract my height from Ben Roethlisberger's height. Therefore I am shorter to him for about 19cm.
the size of big ben including the tower is 96 3 m 315 9 ft that is equal to about 16 stories the first 61 m 200 ft at the bottom are comprised of brickwork and anston limestone cladding the rest of the tower is made up of cast iron