Recent content by langtu

  1. L

    How can someone achieve invisibility?

    I mean the light go throughout one thing does not mean it does not affect on that thing. In fact, the light from the sun heats us everyday although it goes through the air(invisible). Am I right with this example?
  2. L

    How can someone achieve invisibility?

    I still do not understand why a invisible person is blind. Although his or her retain can not reflect light,the light coming to his retain still damages his retain (for example, the light from the sun still burn a plastic or heat from sun still makes the water transfer to cloud although they are...
  3. L

    Can Invisible People See? Explained

    Can an invisible person see? Please explain for me. Thanks
  4. L

    Mathematics and Plausible Reasoning

    I am looking for 3 books of Polya. Please help me! 1. Mathematical Discovery 2. How to Solve It 3. Mathematics and Plausible Reasoning Thank you so much :smile:
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