Is invisibility really achieved?

  • Thread starter Arslan
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  • #1
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Is invisibility really achieved???

are we really able to bend lighth or its still a myth?????????
 

Answers and Replies

  • #2


Have a glass of water handy?
 
  • #3
K^2
Science Advisor
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There are solutions for a sphere that bends light in a way that it appears to not be there at all and remains invisible when viewed from any direction. It has a hollow center where an ordinary object may be concealed. These solutions require meta-materials with refraction indices less than 1. Such meta-materials do exist, but currently, require some very special conditions that make them impractical for building something out of.

I have not heard about anyone actually building one of these, but things look promising at least. However, something even remotely resembling a practical invisibility cloak is still a long way away.
 
  • #4
346
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You seem to have spilled your jar of question marks.
 

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