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Functional Cloak of Invisibility that can make people completely invisible had been developed by Canadian company HyperStealth Biotechnology and works without cameras, batteries, or mirrors. HyperStealth Biotechnology is a Canadian company that works on camouflage fabric, the Quantum Stealth material was designed by Guy Cramer, which can bend light waves around the subject and removes visual, infrared (night vision), and thermal signatures.