Max: Ultrasound Haptics

The field of haptics - integrating computing and the sense of touch - has been around for some time but has required gloves or mechanical devices to impart a sense of feeling.

Now, a team of Japanese researchers has developed a system that uses focused ultrasound to do the job.

More at the Beeb.

The illusion of touch. Add some holograms and you have true virtual reality, a holodeck if you will. Just try not to be using it when the power blinks on and off. As we know all too well, that causes the holograms to come to life and want to kill you.