When J. K. Rowling conjured up the invisibility cloak to help her star wizard Harry Potter escape from sticky situations, she would have never guessed that scientists all over the world, would start scrambling to create a real one. Over the years, there have been numerous attempts. However, they all entail the use of super expensive materials and involve complicated methods, which means they are of no practical use.
That is the reason this latest version that was unveiled on September 25th, by University of Rochester physics professor John Howell and graduate student Joseph Choi, is causing so much excitement. The "Rochester Cloak" has been created using readily available lenses making it affordable and fairly easy to build, However, before you get ideas of draping yourself in one like the young wizard did, the invisibility device is not a "cloak" in the conventional sense.
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