Look out for mass-produced invisibility cloaks thanks to an entirely new way of designing and manufacturing them out of materials such as Teflon
When it comes to invisibility cloaks, one of the trickiest problems is how to make the things.
The materials of choice are known as metamaterials which are created by assembling a repeating pattern of structures that interact with the light they are designed to cloak. This kind of detailed assembly means that making metamaterials is an expensive and time-consuming process. What’s more, the resulting invisibility cloaks are never perfect.
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