Haptic technology in general not harmful to the human body and can be focused easily. One company called Ultrahaptics has been working with this technology to provide non-contact haptic feedback. Founded in 2013, Ultrahaptics has focused on providing users haptic feedback in free space using ultrasound technology. They use multiple ultrasound speakers to make changes in the air pressure around the user. This provides the ability to feel the pockets of pressurized air focused in the environment. This gives the user tactile cues for gestures, invisible interfaces, textures, and virtual objects. The company is continuing to grow and launched their evaluation programme
Mystery of the Senses to be delivered in clumps that are hard to absorb". Ken Ringle of "The Washington Post" was not impressed, and described the series as "distracted, disorganized, frequently trivial and irritatingly self-indulgent". He went on to say that "instead of exploring our senses' role in the natural world", the programs "tends to celebrate instead the way corporations seduce them artificially for profit". Despite the mostly unfavorable review, Ringle did concede that "some moments in the series are pure gold". Mystery of the Senses Mystery of the Senses is a five-part "Nova" miniseries, based on the book "A Natural History of the