Question: Can you ever become invisible?

Robert Thompson answered on 19 Mar 2012:

Hmm interesting question. There are materials that people know of that can have negative refractive index and other bizzare properties. These can reflect the light around you to make you appear invisible. and there are materials that really can be invisible under certain circumstances by almost transporting the light from one side to the other. These effects only occur under special circumstances though so its very very unlikely that any time soon they will be used to make us appear invisible.