It is possible to appear invisible

Everyone has a wild fantasy to appear invisible, and do things that otherwise they would have been hesitant or reluctant to do. Now this is made possible by a mathematician at University of Liverpool, his unique computer model design makes it possible for the object to appear invisible in close range.

Scientists have already created an ‘invisibility cloak’ made out of ‘metamaterial’ which can bend electromagnetic radiation – such as visible light, radar or microwaves – around a spherical space, making an object within this region appear invisible.
[source]

These technologies will be initially used for military purposes. Think of the consequences if it gets into the wrong hands, bullets will be flying from nowhere, whom to catch there is no one seen.

These days every new technology invented, brings its share of risks and dangers.

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