A convex lens corrects long-sightedness, allowing an image to focus on the retina Rays from a nearby object need to be converged more, to form the image on the retina. Long sight is corrected using a ...
Sir Isaac Newton once wrote, in what must be one of the most oft-quoted lines in the history of science, "If I have seen further it is by standing upon the shoulders of giants." Well, any of us who ...
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