Muggles learn to make invisibility cloak without magic!

Apparently, Duke University's Pratt School of Engineering and Imperial College London have found a way to manipulate the electromagentic spectrum to cloak objects , using 'metamaterials'.

It's actually quite fascinating! And although it's hard to imagine the implications, technology like this could expose the Wizarding world!!

Electromagnetic waves would flow around an object hidden inside the metamaterial cloak just as water in a river flows virtually undisturbed around a smooth rock

- Dr. Smith

here is the link for the news story:
http://dukenews.duke.edu/2006/05/cloaking.html