In Brief

You only need 4 lenses and some patience to recreate the University of Rochester's invisibility cloak

Whether you’re a science fan, Harry Potter fanatic, or a little bit of both, chances are you’ve heard of Rochester University’s real-life invisibility cloak, unveiled earlier this year. The university’s project details suggest that you can create your own cloak at home, using materials that total less than $100.

The Rochester Cloak uses 4 lenses to bend light around objects, meaning that viewers can see past an item rather than look directly at it. The lenses, which have different focal lengths, focus light on a point behind the interrupting object.

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