Researchers from Tsukuba University in Japan have created holograms that respond to human touch. Involving femtosecond lasers, which can stimulate physical matter to emit light in 3D form, the research could eventually lead to the creation of holograms that humans are able to interact with.
Our sense of touch is made possible thanks to thousands of "mechanoreceptors," which are distributed throughout our skin. The more pressure that's applied to one of these sensors, the more electrical pulses it sends to the brain, thus increasing the tactile sensation that we experience. Led by Prof. Zhenan Bao, scientists at Stanford University have now created synthetic skin that contains electronic mechanoreceptors, which could give prosthetic limbs or robots a sense of touch.