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By jlips6 on 3/4/2008 6:21:30 PM , Rating: 3
1 to make a ship invisible to the naked eye means everything has to be invisible. every part, including non-metallic ones, such as glass (windshields, a huge problem).
2 even metal parts would be a problem because naturally, all metals are different, so you need a different cloaking method for each of them
3 metals (and all materials for that matter) have a tendancy to wear out when subjected to constant wear and tear, as well as chemical reactivity, which is a large one when you are traveling in and on 3 huge problems. air. water. salt.
4 Any material that refracts light like this would undoubtedly have to have some properties that might not work so well when blasted with light from all directions, (water refraction, hello people?) especially on so large an object.
5 how can a ship make no sound?
6 since this is a project for the future, they do realize that future radar bands are capable of detecting current methods of avoiding radar, right?
7 although this may sound comical, these have a much larger chance of vanishing and no one discovering them. (think about if one were to sink.)
8 photons have size, small though it may be, and the object they originally bent light around was also extrodinarily small. As an object grows, light refraction grows more complex. (magnified objects need more light, so a cloaking a grain sized object is much less difficult than cloaking an apple sized one even.)

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