ExtremeTech.com recently reported on the father and son team of John and Benjamin Howell who have built a “human scale invisibility cloak” for about $150. If the demo above looks somewhat familiar, though, it is because they nicked their idea from stage illusionists. They freely admit this in their research paper, but maintain that it may have practical applications because of its scalability, which gives the system advantages of more complex systems. From the above video we can conclude one thing the duo did not learn from magicians is how to choose a proper background to completely “pull off” this illusion!