As cool as a personal invisibility cloak would be, there is no way they would ever get to the point where they were letting people buy them, which is deep down what we all want.  We all want these for voyeuristic reasons.  But if everyone has them, who will we spy on?

Ali Aliev, the researcher behind the feat, said he was able to make the cloak using carbon nanotubes, which look like thin strands of thread.

Mr Aliev told MSNBC: “We really can hide objects. … We can switch for a short moment and make it disappear.’