In the first study, published in eLight, the team used a brainwave extraction module that allowed volunteers to control a metasurface-a 2D version of metamaterials-with their minds alone. So why not use the brain as a source to trigger changes in metamaterials? Depending on the brain’s state-for example, if it’s “relaxed” versus “concentrating”-different frequencies of brain waves take over. Why care? Our brains generate electromagnetic waves as they process information. This gives them a superpower: they can readily adapt their properties-for example, bending light in different ways-rather than relying on the properties of the materials they’re made of. Often arranged in tandem, they can interact with electromagnetic waves, including visible light, in ways that are impossible for natural materials. Metamaterials are artificial composites with bizarre optical properties. Now, thanks to metasurfaces, two studies just showed that it’s potentially possible. Without physically touching the can, she completely crushes it using her mind alone.Ĭhanging objects with the mind has long been a trope in science fiction. Stranger Things fans will be familiar with this scene: Eleven, a girl with telekinetic powers, stares intently at a Coke can.
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