Graduate student Joseph Choi looks through a multidirectional `perfect paraxialâ€™ cloak using 4 lenses. â€œThis is the first device that we know of that can do three-dimensional, continuously multidirectional cloaking, which works for transmitting rays in the visible spectrum.â€
An aerial view of the University of Rochester’s River Campus, which sits in a graceful bend in the Genesee River.
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