Here is a bit more on how this could work:

This mid-air haptic feedback eliminates the need for any attachment of actuators or contact with physical devices. The user perceives a discernible haptic shape when the corresponding acoustic interference pattern is generated above a precisely controlled two-dimensional phased array of ultrasound transducers.

Wow I can’t wait until this becomes part of applications.  Maybe I can touch a virtual pizza as I am ordering it 🙂

One of the commenters is enthusiastic and states:

How brilliant! I’ve loved watching the water demonstrations

Personally, this type of tech would effect online dating, food, business, travel, and basically every industry.  From virtual tours of real estate, to medical diagnosis etc, this will change things a lot.

We hope you enjoy the videos!

thanks to the University of Bristol

thanks to sci-news.com