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Whether it’s James Bond flicking a switch to turn his Aston Martin invisible in the middle of a car chase, Harry Potter ducking and diving out of harm’s way by donning a magical invisibility cloak, the Predator, Klingon Birds-of-Prey, or the endless reams of literature based on characters being able to go about their lives undetected, the dream of tech that grants us invisibility has long been an obsession.
But it has, for now, remained in the realm of science fiction. As recently as 2016, researchers had concluded that the fundamental laws of physics meant a true invisibility cloak wasn’t possible. Past methods of creating invisibility relied on blocking objects at specific electromagnetic wavelengths—something that fell apart when you needed to work on multiple wavelengths at once.
That may no longer be the case. A 2019 patent, filed by a Canadian company called Hyperstealth Technology, suggested that it’s possible to bend light around an object using a “quantum stealth” cloak to make it disappear—albeit not perfectly. And militaries around the world continue to try to make the technology work. In 2020, the Israeli Ministry of Defense and tech company Polaris Solutions announced a 500-gram thermal visual concealment sheet that uses polymers to conceal anyone or anything underneath it.
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Photograph: Vollebak
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