Capable of independent thought.
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4 Will a prism widen a monochromatic beam? Jun 25 '14
4 In an optical system with a single convex lens, where should the image area be placed in order to take pictures at infinite focus? Jul 14 '14
3 Why can't we precisely define physics? May 30 '15
2 How do we measure distance using parallax? Apr 24 '15